Hydration

Osprey’s Hydraulics 2L Reservoir by Hydrapak is ideal for large-volume packs and long-duration activities. The HydroStatic backerplate provides structure for easy loading into a full pack and maintains a flat profile. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

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

Want to hit the trail for a quick ride that calls for water and just a few minimal pieces of gear? The low-profile Katari 7 is your go-to pack. A light and airy mesh harness with rolled soft edges provide contouring comfort around your shoulders for excellent fit, while a removable webbing hipbelt enhances stability. An included 2.5-liter reservoir slips into an external hydration sleeve with a magnetic bite valve attaching to the sternum strap. A vertical front zip pocket is just roomy enough to carry the essentials, like a spare tube and tools or a rain jacket. Store food and other small items you want to access quickly in stretch-mesh side pockets. Functional and versatile, no one is stopping you from using this pack for activities in the off season. 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 - Front panel vertical zip compartment with tool organization

Riders looking for a low-profile lumbar pack with integrated hydration need look no further than the Seral 4. This slim waistpack features a 1.5-liter bladder with our updated high-strength magnetic coupling for improved hose management even in rough terrain. the Seral 4 has enough storage capacity for ride essentials, such as a spare tube, CO2 and multi-tool and, of course, snacks. Constructed with high-quality bluesign-approved recycled high-tenacity nylon with a PFC-free DWR coating. Lumbar Carry For riders who require hydration or gear storage while riding, but prefer the off-the-back carry and minimalism provided by lumbar packs. Ride Stability Our bike-specific, angled hipbelt and compression straps provide stability and comfort by keeping the pack close to your body. This is created by a breathable airmesh wrap hipbelt that contours over the hipbone, Osprey's ErgoPull cross-body waist strap closure system that pulls the pack into the lumbar and side compression straps that pull the load close to your body, providing the most comfortable, secure and stable carry. Included Reservoir A dedicated hydration compartment stores an included 1.5 L lumbar reservoir for short to medium rides and compresses for stable carry, while the hose magnet attaches to the bite valve for easy access while riding. Sustainable Materials Constructed with PFC-free recycled bluesign-approved nylon; a sustainable build that's tough and durable to endure years of riding. - AirScape backpanel with contouring lumbar wrap provides maximum stability - Included Osprey Hydraulics 1.5 L lumbar reservoir by Hydrapak - Magnetic hipbelt bite valve attachment - Large zippered main compartment with reservoir sleeve - Main compartment tool organization and internal zippered pocket - Blinker light attachment with reflective graphic - Extra-thick ridged foam with center air channel for excellent ventilation - Airmesh wrap hipbelt with zippered fabric pockets provide stability and breathability - ErgoPull waist strap closure system allows for proper snug and stable fit