Hike, cycle or run in complete comfort with the AirContour back system and pre-curved back panel that promote breathability whilst guaranteeing a close fit with more natural movement.There's a zipped top pocket for valuables and stretchy side pockets for water bottles in addition to a hydration bladder pocket that carries up to 2L water reservoirs for days when you need extra hydration. AirContour breathable back systemHydration compatible - fits 2L bladderRemovable waistbelt for versatilityBike light loopStretch water bottle side pocketsZipped top pocket for secure storageInternal zipped security pocket for valuable itemsSternum strap with whistle to attract attentionTop grab handleKey clipMaterial: 100% RECYCLED 420D Polyester Ripstop / HydroShieldBack length: 15”/37cmCapacity: 5 LitresDimensions: 40 x 22 x 16 cmColour: BlackWeight: 280g