EVOC:  The extra lightweight hydration backpack sits firmly on your back while you getall the action. Your jersey pockets remain easy to reach and the weight ofprovisions and gear are evenly distributed in the spacious chest compartment. • HYDRATION BLADDER 1,5 included• 2 NUTRITION COMPARTMENTS for bars or 150 ml liquid/gel (each)• Chest pocket for gear you need to have quick access to while ridingCapacity - 1.5L (0.2L chest pockets, 1.3L rear pack)Weight - 230 gDimensions - 23 x 33 x 2cmMaterial - N210 D TAFFETA, 3D AIR MESH, AIRO FLEX