Hydration backpack backpack capacity 10 liter pack volume 25 litre application cycling model 2016 materials nylon neoprene polyester suitable for women men chest straps with chest strap adjustable hip belts with waist strap with pockets adjustable additional fastenings helmet holder rear light loop carry handle top back cushion adjustable outside pockets front pocket special feature padded back fastener zip weight 106 kg water reservoir er