* Air Flow Contact System offers perfect back ventilation* Attachment System for: helmet (XC, full face), protection gear (stowable)* Tool compartment (separate, quick access)* Rain cover (integrated)* Emergency plan (integrated)* Accommodates hydration Systems up to 3L (not included)* Material: N 210D Ripstop HD, 3D Air Mesh, Airo Flex* Volume: 18L* Size: 28 x 50 x 12cm (11 x 19.7 x 4.7)* Weight: 900g (2lbs)