Packs/Systems

Be ready to ride at a moment's notice with plenty of space for MTB essentials on rides lasting two hours or less. Always be prepared For off-road riders who give up seat packs for dropper posts, Rapid Pack is perfect for mountain bike rides lasting two hours or less. Designed with a sleek aesthetic that makes you feel like you aren't wearing your uncle's fanny pack, this bag holds all your essentials when cargo pockets are being used and hydration packs are overkill. Product details - Lightweight stretch woven material is durable and works with the body's natural movements - Ridged foam back panel for breathability and comfort - Two zippered security pockets hold essentials - Left-side opening features internal mesh pockets for easy gear organization - Middle waterbottle pocket centralizes weight while riding - Right-side opening features internal mesh pockets with compression phone sleeve and key fob - Fits most tubes including fat bike and plus sized models

Double up on hydration with an insulated Crux reservoir sleeve that adds 2 liters of extra water to any pack. In addition to keeping your water supply cool, the insulated sleeve features attachment points that make it easy to secure the UnBottle to a kayak, a larger pack, or any other gear setup. -The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. -External fill means you can top off the reservoir without removing it from the fabric sleeve. -Multiple attachment points make it easy to lash the UnBottle to boats, vehicles or backpacks -Easy-to-grab handle makes carrying convenient while providing a loop on which to hang the reservoir -Zippered tube access

The Mini-M.U.L.E is the ultimate kids hydration pack that lets them carry the essentials when headed out with their parents.

We just improved upon a classic—the Classic Light is exactly what your everyday ride has been missing. Lightweight meets heavy-duty for a pack that is durable, adaptable, and comfortable for any length adventure. The sleek design features a 2-liter Crux Reservoir with Quicklink disconnect and an extra 2-liters of cargo space. The Air Support Light Back Panel and a ventilated harness ensure effective cooling and ultimate breathability. The bungee overflow allows you to quickly stash an extra layer without missing a beat. With a secured zippered pocket to store your keys and phone, plus an adjustable sternum strap for a custom fit and increased stability, you have everything you need to hit the trail, stay hydrated, and have fun out there. - Lightweight and Durable Materials - Air Support Light Back Panel: Designed with body mapping technology for efficient ventilation and lightweight comfort - Ventilated Harness: Lightweight and breathable - Integrated Tool Organization - Secure Zippered Pocket: Perfect for keys, phone, or other essentials - Bungee Overflow: Quickly stash or shed an extra layer - Adjustable Sternum Strap: Offers a range of adjustments for a custom fit and increased stability - Tube Trap Management: Keeps your tube secure and accessible when you need it. - Light Loop: Clip on a light to make the ride to and from the trailhead safe - Helmet Carry: Stow and secure helmet - Reflectivity: For low-light safety

Take only what you need with the Women's Hydrobak Light. This minimal carry pack accommodates a 1.5-liter Crux Reservoir with Quicklink disconnect, plus an extra 1-liter of cargo space for basic essentials so you can carry on. Designed with lightweight and durable materials, the streamlined silhouette features an Air Support Light Back Panel and a ventilated S-curved shoulder harness for cooling, breathability, and a women's-specific fit. Additional external features include helmet carry, light loop and reflective detailing for added safety. Safely stow keys, phone, or tools in the secure zippered pocket and enjoy customized comfort with the adjustable sternum strap. - Lightweight and Durable Materials - Air Support Light Back Panel: Designed with body mapping technology for efficient ventilation and lightweight comfort - Ventilated Harness: Lightweight and breathable - Secure Zippered Pocket: Perfect for keys, phone, or other essentials - Helmet Carry: Stow and secure helmet - Adjustable Sternum Strap: Offers a range of adjustments for a custom fit and increased stability - Reflectivity: For low-light safety - Light Loop: Clip on a light to make the ride to and from the trailhead safe - Tube Trap Management: Keeps your tube secure and accessible when you need it. - Women's Specific Fit: Our women's packs utilize body mapping technology for a tailored fit and enhanced cooling. S-curved shoulder harness is contoured to fit a woman's body for added comfort and stability. Pack shape is thoughtfully designed with a woman's torso in mind.

Your future is light with our newest member of the pack. The all-new Rogue Light Hydration Pack is everything you crave for the everyday trail: minimal, durable, cool, and comfortable. The sleek, lightweight design features the Air Support Light Back Panel and a ventilated harness for effective cooling and ultimate breathability. The total 7-liter capacity includes a 2-liter Crux Reservoir with Quicklink disconnect. Stow and secure a light layer in the stretch overflow pocket and always be seen with reflective safety detailing. With a secured, zippered pocket to store your keys and phone, plus adjustable sternum straps for a custom fit, helmet carry and increased stability, you'll be ready to start your adventure. - Lightweight and Durable Materials - Air Support Light Back Panel: Designed with body mapping technology for efficient ventilation and lightweight comfort - Ventilated Harness: Lightweight and breathable - Integrated Tool Organization - Secure Zippered Pocket: Perfect for keys, phone, or other essentials - Stretch Overflow Pocket: Quickly stash or shed an extra layer - Reflectivity: For low-light safety - Adjustable Sternum Strap: Offers a range of adjustments for a custom fit and increased stability - Helmet Carry: Stow and secure helmet - Light Loop: Clip on a light to make the ride to and from the trailhead safe - Tube Trap Management: Keeps your tube secure and accessible when you need it. - Elastic Pump Loop

Finding the right fit can feel like an uphill climb. Our Women's Rogue Light is everything you crave for the everyday trail: minimal, durable, cool, and comfortable. Our women's packs utilize body mapping technology for a tailored fit and excellent cooling. The S-curved shoulder harness is contoured and the pack is shaped for comfort and stability. The lightweight design features the Air Support Light Back Panel and a ventilated harness for effective cooling and ultimate breathability. A total 7-liter capacity includes a 2-liter Crux Reservoir with Quicklink disconnect.. Stow a light layer in the stretch overflow pocket and always be seen with reflective safety detailing. With a secured, zippered pocket to store your keys and phone, plus adjustable sternum straps for a custom fit, helmet carry and increased stability, you'll be ready to start your adventure. - Lightweight and Durable Materials - Air Support Light Back Panel: Designed with body mapping technology for efficient ventilation and lightweight comfort - Ventilated Harness: Lightweight and breathable - Integrated Tool Organization - Secure Zippered Pocket: Perfect for keys, phone, or other essentials - Stretch Overflow Pocket: Quickly stash or shed an extra layer - Reflectivity: For low-light safety - Adjustable Sternum Strap: Offers a range of adjustments for a custom fit and increased stability - Helmet Carry: Stow and secure helmet - Light Loop: Clip on a light to make the ride to and from the trailhead safe - Tube Trap Management: Keeps your tube secure and accessible when you need it. - Elastic Pump Loop - Women's Specific Fit: Our women's packs utilize body mapping technology for a tailored fit and enhanced cooling. S-curved shoulder harness is contoured to fit a woman's body for added comfort and stability. Pack shape is thoughtfully designed with a woman's torso in mind.

Less is truly more when you hit the trail. The lighter the load, the faster the ride. It's all about the chase with a new spin on our essential hydration bike vest. Redesigned with lightweight, breathable materials and a comfortable all-day fit—our Chase Vest has you covered. Easy-access pockets on the harness serve as a command center for your phone, nutrition, and anything else you need on the fly. Strategically positioned 3D vent mesh moves more air to keep you cool. Stay fully hydrated and prepared for any terrain out there with 1.5-liters of water, integrated tool organization, and reflectivity to be safely seen. Thoughtfully engineered to take your mind off your gear so you can focus on the ride. - 3D Vent Mesh Harness: Lightweight and breathable with added cargo. Designed for all-day comfort. - Integrated Tool Organization: Keep your CO2 cartridges, patch kits and more right where you can find them. - Easy Access Harness Pockets: Quickly grab your phone and essentials - Sits Above Jersey Pockets: For all-day rides where every bit of storage is needed - Secure Zippered Pocket: Perfect for bike tools or other essentials - Dual Adjustable Sternum Straps: Offers a range of adjustments for a custom fit and increased stability - Reflectivity: For low-light safety - Stretch Overflow Pocket: Quickly stash or shed an extra layer - Elastic Pump Loop

Let the Lobo redesign redefine what it means to multitask. This pack offers a versatile array of features designed to fit any MTB, hike, bike lifestyle...all in one pack! Led by Air Support Back Panel that's designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your back, the Lobo is the leader of the pack.

Everybody doesn't necessarily work for EVERY body. The Women's Chase Bike Vest was designed for our fearless female riders. For elite racers to the everyday enthusiast, Chase has been redesigned with lightweight, breathable materials and a comfortable all-day fit. Tailored to fit female frames, the s-curved shoulder harness is specifically contoured to fit a woman's body for added comfort and stability. Designed with body-mapping technology, strategically positioned 3D vent mesh moves more air to keep you cool. Stay fully hydrated and prepared for any terrain out there with 1.5-liters of water, integrated tool organization, and reflectivity to be safely seen. Thoughtfully engineered to take your mind off your gear so you can focus on the ride. - 3D Vent Mesh Harness: Lightweight and breathable with added cargo. Designed for all-day comfort. - Integrated Tool Organization: Keep your CO2 cartridges, patch kits and more right where you can find them. - Easy Access Harness Pockets: Quickly grab your phone and essentials - Sits Above Jersey Pockets: For all-day rides where every bit of storage is needed - Secure Zippered Pocket: Perfect for bike tools or other essentials - Dual Adjustable Sternum Straps: Offers a range of adjustments for a custom fit and increased stability - Reflectivity: For low-light safety - Stretch Overflow Pocket: Quickly stash or shed an extra layer - Elastic Pump Loop - Women's Specific Fit: Our women's vests utilize body mapping technology for a tailored fit and enhanced cooling. S-curved shoulder harness is contoured to fit a woman's body for added comfort and stability. Vest shape is thoughtfully designed with a woman's torso in mind.

Less is truly more when you hit the trail. The lighter the load, the faster the ride.  It's all about the chase with a new spin on our essential hydration bike vest. Redesigned with lightweight, breathable materials and a comfortable all-day fit-our Chase Vest has you covered. Easy-access pockets on the harness serve as a command center for your phone, nutrition, and anything else you need on the fly. Strategically positioned 3D vent mesh moves more air to keep you cool. Stay fully hydrated and prepared for any terrain out there with 1.5-liters of water, integrated tool organization, and reflectivity to be safely seen. Thoughtfully engineered to take your mind off your gear so you can focus on the ride.

Enjoy the ride with the newest update to our best-selling bike franchise. We've taken the DNA from the M.U.L.E. family and given it all-weather protection. The weatherproof, storm-ready fabric means you can focus on the path ahead, knowing your essentials will be kept safe from the elements. 3L Crux Reservoir Quicklink System supplies massive hydration and speedy delivery. Plus you'll have plenty of storage for gear and tools so you're prepared for anything. Our Command Center harness provides storage and unparalleled stability for those rowdy trails. Air support back panel with body mapping technology is designed to keep your temperature from peaking as you reach peak performance on the trail. Repurpose Green Sustainability Badge means it's made with safer chemicals.

Bring along the essentials with the Hot Laps 1L Bike Lumbar Pack. Your mini-tool, a tube, and some food pack into the organized main compartment, which includes a dedicated fleece-lined phone pocket and some organizers. If you're headed out under cloudy skies, there's just enough room for a packable jacket too. And lastly, the sleek deployable side water bottle pocket helps you stay hydrated. - Breathable air mesh back panel - Deployable side water bottle pocket - Internal organization - Padded, fleece-lined phone sleeve - External attachment straps

Even optimists get flats sometimes. The Hot Laps Stealth is the perfect remedy for people not wanting to wear a pack (or anything) when cranking out laps at the park or local trails. Designed to be worn under a jersey, the Stealth features just enough storage to keep you from walking home: a mini-tool, spare tube, a gel, your phone, and some cash. Bonus: the Polygiene treatment keeps the bag odor-free for multiple rides. - Under-jersey storage solution - Breathable air mesh back panel - Deployable side water bottle pocket - Internal fleece-lined phone pocket - Spare tube or sunglasses storage - Zippered side pocket - Micro-stretch waistbelt for added comfort

Bring along the essentials with the Hot Laps 2L Bike Lumbar Pack. Your mini-tool, a tube, and some food pack into the organized main compartment, which includes a dedicated fleece-lined phone pocket and some organizers. If you're headed out under cloudy skies, there's just enough room for a packable jacket too. And lastly, the sleek deployable side water bottle pocket helps you stay hydrated. We bet you'll agree that there's nothing like the freedom of the sleek and functional Hot Laps 2L Lumbar Pack. - Breathable air mesh back panel - Two deployable side water bottle pockets - Internal organization - Padded, fleece-lined, zippered phone pocket - External attachment straps

If you're looking to make the move from your trusty backpack, and join the lumbar pack movement, Hot Laps 5L is a great way to do that. It comes with a squat 2L, lumbar-shaped hydration reservoir, and still has plenty of space to stow all the gear you're used to having on hand for your rides. The cargo pocket features organization for a phone, tools, food, and a light shell. Lower straps untuck to hold any bulky knee pads while side compression straps keep the load close as you empty your water, and the breathable AirFlow back panel does away with the hotspots and "pack sweat" you're used to pedaling through. - 2L / 70oz Dakine x Hydrapak 3D lumbar reservoir - Phaser bite valve - Magnetic buckle auto-locates hydration hose - Breathable Air Flow back panel - Internal organizer pockets - External attachment straps - Padded waistbelt w/zippered phone pocket - Side compression - Safety light attachment

Bring along all your essentials with the minimalist Shuttle 6L bike hydration pack. This 2-liter hydration pack with a bite valve offers cooling comfort thanks to the breathable air mesh back panel and shoulder straps. Sunglasses stay protected in the fleece-lined pocket; quickly access your pump in the dedicated sleeve. The sternum strap offers the added bonus of a rescue whistle. The Shuttle 6L has a home for everything you need and nothing you don't. - 2L / 70oz Hydrapak reservoir - Phaser bite valve - Breathable air mesh back panel and shoulder straps - Fleece-lined sunglass pocket - Internal pump sleeve - Integrated rescue whistle/sternum strap

The Women's Shuttle 6L is the perfect solution to hydration without added bulk. This minimalist pack features a generous 2-liter vertical hydration system with a bite valve. The lightweight pack features a women's-specific fit and plenty of cooling features including a breathable air mesh back panel and shoulder straps. Essential features include a fleece-lined sunglass pocket, an internal pump sleeve, as well as an integrated rescue whistle on the sternum strap. The Women's Shuttle lets you drop in with no distractions. - Women's-specific fit - 2L / 70oz Hydrapak reservoir - Phaser bite valve - Breathable air mesh back panel and shoulder straps - Fleece-lined sunglass pocket - Internal pump sleeve - Integrated rescue whistle/sternum strap

A Weather-Tight Hip Pack For Adventure Riding Get your adventure ride on with the Seeker 6L Bike Hydration pack. Light and weather-tight, this hip pack serves up a full two liters of water storage with room to stow food, a layer and day-ride essentials, plus the straps to lash on a wind or rain shell for unpredictable weather. A quick-access hip belt pocket puts small items within easy reach and compression straps cinch the whole bag down when your load is light. - Limited Lifetime Warranty - 2L / 70oz Hydrapak lumbar reservoir with quick disconnect - High-flow Blaster bite valve with shut-off and magnetic hose clip - Lightweight, weather-tight construction - Thermoformed 3D back panel - Zippered hipbelt pocket - Internal organizer pockets - External carry straps - Side compression straps - Reflective logo - Safety-light attachment

The Session 8L bike hydration pack is a minimalist, yet full-featured pack combining the cooling comfort of a breathable back panel with airy shoulder straps. This narrow, lightweight pack features a 2-liter vertical hydration reservoir with a bite valve. The pack offers plenty of storage including an organized front pocket, a fleece-lined sunglass pocket, additional side pockets plus external attachment straps. The Session is a do-it-all bike pack to keep you out all day on the trails. - 2L / 70 oz Hydrapak reservoir - Phaser bite valve - Breathable Air Flow backpanel and shoulder straps - External attachment straps - Fleece-lined sunglass pocket - Internal organizer pockets - Safety light attachment - Integrated rescue whistle / sternum strap

The Women's Session 8L is a lightweight, compact hydration pack with dedicated storage for trail essentials. The women's-specific fit of this lightweight pack ensures minimal shifting and evenly distributed weight, while the breathable airflow back panel and shoulder straps keep you cool out on the trail by minimizing hot spots. The Women's Session stores 2-liters of vertical hydration, plus features a dedicated fleece-lined sunglass pocket, internal organizer pockets, as well as additional safety features. Stay lightweight and compact out on the trails with the Women's Session 8L bike pack. - Women's-specific fit - 2L / 70 oz Hydrapak reservoir - Phaser bite valve - Breathable Air Flow back panel and shoulder straps - External attachment straps - Fleece-lined sunglass pocket - Internal organizer pockets - Safety light attachment - Integrated rescue whistle/sternum strap

The men's Syncline bike hydration pack is sized for everyday riding. The 12-liter pack has just the right amount of storage space for essential tools, snacks, and layers plus a lumbar reservoir that keeps the load low and stable. Our proven Air Flow back panel and shoulder strap designs deliver breathable comfort. - 3L / 100oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - High-flow Blaster bite valve w/shut-off and magnetic hose clip - Breathable Air Flow back panel and shoulder straps - DK Impact CE-certified Spine protector compatible (not included) - Front helmet attachment loops - Deployable armor carry straps - Fleece-lined sunglass pocket - Mesh side pocket - Internal organizer pockets - Safety light attachment - Integrated rescue whistle

The women's Syncline bike hydration pack is sized for everyday riding. The 12-liter pack has just the right amount of storage space for essential tools, snacks, and layers plus a lumbar reservoir that keeps the load low and stable. Our proven Air Flow back panel and shoulder strap designs deliver breathable comfort. - Women's-specific fit - 3L / 100oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - High-flow Blaster bite valve w/shut-off and magnetic hose clip - Breathable Air Flow back panel and shoulder straps - DK Impact CE-certified Spine protector compatible (not included) - Front helmet attachment loops - Deployable armor carry straps - Fleece-lined sunglass pocket - Mesh side pocket - Internal organizer pockets - Safety light attachment - Integrated rescue whistle

Sized for longer days and adventurous rides, the 16-liter Syncline bike hydration pack features a lumbar reservoir and plenty of storage space. The lumbar reservoir design adds load stability on the trail. The pack has all the space you need for the tools, snacks, and layers to take on bigger days plus the straps to manage armor and helmet. Our proven back panel and shoulder strap designs deliver breathable comfort. - 3L / 100 oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - High-flow Blaster bite valve w/shut-off and magnetic hose clip - Breathable Air Flow back panel and shoulder straps - DK Impact CE-certified Spine protector compatible (not included) - Front helmet attachment loops - Deployable armor carry straps - Fleece-lined sunglass pocket - Dual side pockets - Internal organizer pockets - Safety light attachment - Integrated rescue whistle

The Drafter 10L meets all your mountain bike backpack needs from hydration to protection in a compact, breathable design. Stay hydrated on the move with the 3-liter Hydrapak reservoir, located on the lumbar for a lower center of gravity, with a high-flow bite valve. Stay cool and comfortable thanks to the air suspension back panel and breathable ergonomic shoulder straps. The organizer pocket features a home for all your tools, replacement parts, and necessities. Additional features include spine protection compatibility, an external helmet carry, plus deployable armor carry straps. - 3L / 100 oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - High-flow Blaster bite valve w/shut-off and magnetic hose clip - AirLite Suspension back panel - Breathable ergonomic shoulder straps w/sunglasses quick stash - Separate cargo and hydration compartments - Internal ebike spare battery storage system - Padded, fleece sunglasses/phone pocket - Internal organizer pockets - Deployable external carry straps - Front quick stash & compression panel - Reflective panel and safety light attach - DK Impact Spine protector compatible (not included)

The Drafter 10L Women's Backpack meets all your mountain bike backpack needs, combining all the best technical bike pack features in a low-profile, women's-specific silhouette. Stay hydrated on the move with the 3-liter Hydrapak reservoir, located on the lumbar for a low center of gravity, with a high-flow bite valve. Stay cool and comfortable thanks to the shorter torso length, Air Suspension back panel, and S-shaped breathable shoulder straps. The organizer pocket features a home for all your tools, replacement parts, and necessities. Additional features include spine protection compatibility, external helmet carry, and deployable armor carry straps. - Women's-specific fit - 3L / 100 oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - High-flow Blaster bite valve w/shut-off and magnetic hose clip - AirLite Suspension back panel - Breathable ergonomic shoulder straps w/sunglasses quick stash - Separate cargo and hydration compartments - Internal ebike spare battery storage system - Padded, fleece sunglasses/phone pocket - Internal organizer pockets - Deployable external carry straps - Front quick stash & compression panel - Reflective panel and safety light attach - DK Impact Spine protector compatible (not included)

The Drafter 14L meets all your mountain bike backpack needs from hydration to protection in a breathable design. Stay hydrated on the move with the 3-liter Hydrapak reservoir, located on the lumbar for a lower center of gravity, with a high-flow bite valve. Stay cool and comfortable thanks to the air suspension back panel and breathable ergonomic shoulder straps. The main pocket holds extra layers, while the front pocket features an organized home for all your tools, replacement parts, and necessities. Additional features include spine protection compatibility, an external helmet carry, plus deployable armor carry straps. - 3L / 100 oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - High-flow Blaster bite valve w/shut-off and magnetic hose clip - AirLite Suspension back panel - Breathable ergonomic shoulder straps w/sunglasses quick stash - Zippered hip belt pocket - Separate cargo and hydration compartments - Internal ebike spare battery storage system - Padded, fleece sunglasses/phone pocket - Internal organizer pockets - Deployable external carry straps - Front quick stash & compression panel - Reflective panel and safety light attach - DK Impact Spine protector compatible (not included)

A Weather-Tight Hydration Pack For Unpredictable Adventures Adventure riding is synonymous with mixed weather and unknown trail conditions. The Seeker 10L Bike Hydration pack offers the weatherproof storage to take on winter rides and unknown spring weather. It has all the bike-centric features you expect in a Dakine pack including helmet carry straps, a breathable back panel and dedicated storage for sunglasses. - Limited Lifetime Warranty - 3L / 100oz Hydrapak lumbar reservoir with quick disconnect - High-flow Blaster bite valve with shut-off and magnetic hose clip - Lightweight, weather-tight construction - AirLite Suspension backpanel - Breathable ergonomic shoulder straps with sunglasses quick stash - Zippered hipbelt pockets - Padded, fleece sunglasses/phone pocket - Internal organizer pockets - Deployable helmet carry - External carry straps - Reflective logo

A kid-specific hydration pack, inspired by Osprey's Verve and Viper line, keeps little shredders hydrated. - Front Shove-It Pocket and external zippered pocket - Blinker light attachment - Includes Hydraulics LT 1.5L reservoir - Sternum strap with integrated whistle - WARNING! High Energy Magnet could affect the function of electronic instruments like pacemakers or avalanche beacons - WARNING! Swallowing hazard. Not for use by children under four years old. See Osprey Hydraulics Owner's Manual for more information

When you want to carry water on your back—and almost nothing else—the Katari 3 has you covered. Low profile but high quality, you'll reach for this pack before your next quick pedal (or ski, or hike) and hardly notice it's there. An airmesh-covered backpanel and rolled soft-edge shoulders deliver excellent ventilation, comfort, and stability, while allowing for full range of motion. A dedicated external sleeve holds an included 2.5-liter reservoir and stretch-mesh side pockets let you grab bars, gloves, and other small essentials on the go. Clip your tail light on the bottom loop to quell any concerns about making it out of the trail before the sun makes its way to the horizon. LOW-PROFILE CARRY - When carrying water and a few essentials are all that's needed, the Katari/Kitsuma provides a lightweight option that rides close to your back for stability on any trail. RESERVOIR INCLUDED - An Osprey Hydraulics LT 1.5L or 2.5L reservoir keeps you hydrated all day long and stores in an external hydration compartment to protect pack contents from accidental spills. RIDE STABILITY - Our rolled, soft-edged harness contours to the upper shoulders to keep the pack close to your body and provide stability. AIRSCAPE SUSPENSION - Atilon foam framesheet allows dynamic body movement and distributes load across entire backpanel AIRSCAPE BACKPANEL - Ridged airmesh-covered foam with center air channel for excellent ventilation BIOSTRETCH HARNESS - Lightweight, ridged airmesh harness provides ventilated comfort - Rolled, soft-edged harness designed to contour the shoulder providing comfort and stability - Low-profile design with AirScape backpanel and rolled, soft-edged harness for maximum comfort - Dedicated hydration compartment with included Osprey Hydraulics LT 2.5L reservoir by Hydrapak - Magnetic sternum-strap bite-valve attachment - Zippered, scratch-free heat-embossed slash pocket - Loop for blinky-light attachment (light not included) - Dual-stretch-mesh side pockets