Description The Osprey Berm Hydration Packs are the perfect match for gear-light rides, this streamlined bike hydration pack keeps water close, essentials secure and comfort high. 4 Litre Perfect for gear-light rides, this streamlined bike hydration pack keeps water close, essentials secure and comfort high. Featuring an included, low-profile Hydraulics™ LS 2.5L Reservoir, magnetic bite valve attachment, zippered front pocket for keys and small items, and an AirScape™ backpanel that provides close-to-body ventilation. 8 Litre A versatile volume for any ride, this streamlined bike hydration pack keeps water close, essentials secure and comfort high. Featuring an included, low-profile Hydraulics™ LS 2.5L Reservoir, magnetic bite valve, front shove-it pocket for extra gear, built-in tool organization and an AirScape™ backpanel that provides close-to-body ventilation. Features 4 Litre Separate reservoir compartment with easy-access S-shaped zipper Included Hydraulics LS 2.5 L Reservoir Adjustable sternum strap with magnetic bite valve attachment Zippered front pocket with key clip for small essentials Reflective details for safety Blinker light attachment (light not included) AirScape™ backpanel that provides close-to-body ventilation. 8 Litre Separate reservoir compartment with easy-access S-shaped zipper Included Hydraulics LS 2.5 L Reservoir Adjustable sternum strap with magnetic bite valve attachment Zippered front pocket with key clip for small essentials Reflective details for safety Blinker light attachment (light not included) Spacious, low-profile main compartment Front shove-it pocket for quickly stashing items or layers Internal mesh drop-in pockets for bike tool organization AirScape™ backpanel that provides close-to-body ventilation. Key Attributes Reservoir Included Enjoy hydration at your fingertips with a magnetic bite valve attachment and easy-fill, S-zip access to the included Hydraulics™ LS 2.5L Reservoir. Stability & All-Day Comfort Breeze down the trail with a ventilated bike-specific harness and a mesh-covered ridged foam AirScape™ Backpanel. Essential Bike Features Secure small items in a zip pocket with key clip, and stay visible with reflective details and a blinker light attachment (light not included). bluesign® PRODUCT This product meets bluesign® PRODUCT requirements, which means materials and components have been selected that adhere to rigorous third-party environmental and social criteria during production. Specifications /tr> 4 Litre Volume 244 IN 3 / 4 L Dimensions 39H x 19W x 14D cm Weight 0.44 Kg Fabric Main bluesign® APPROVED, 100% recycled 300D polyester, DWR treatment made without PFAS Lining bluesign® APPROVED, 100% recycled 70D nylon, DWR treatment made without PFAS Mesh Backpanel & Harness Mesh: bluesign® APPROVED, 100% recycled polyester 8 Litres Volume 488 IN 3 / 8 L Dimensions 41H X 21W X 20D cm Weight 0.57 kg Fabric Main bluesign® APPROVED, 100% recycled 300D polyester, DWR treatment made without PFAS Lininnng bluesign® APPROVED, 100% recycled 70D nylon, DWR treatment made without PFAS Mesh Backpanel & Harness Mesh: bluesign® APPROVED, 100% recycled polyester