A belt pack, with style. Made by Osprey and made for mountain bikers, this is one smart little product. With a total capacity of 7 liters and including a 1.5 liter hydration reservoir, it can carry a spare tube, windbreaker, your phone, tools etc. The Bite Valve at the tip of the hose is magnetically attached to the hip belt, staying out of the way when not needed. - Included: a 1.5 liter hydration reservoir with hose and drinking head - Back panel made with AirScape technology: a mesh and grooved foam - Small item pocket on the inside, key clip - Zippered pocket with soft liner material for phone and glasses - Zippered side pockets - Hip belt made of mesh material - Fabric: 210 denier polyester - Attachment point for a LED rear light