The Camelbak Hydrobak is an entry level hydration backpack. With a bladder capacity of 1.5 litres this hydration system is as popular with cyclists as it is with runners. This backpack features a small front pocket for essentials and is a great product to use when introducing yourself to a back mounted hydration system whilst running.The ergonomic design and breathable back panel reduces movement, rubbing and discomfort. Drinking while running or on the move with Camelbak's backpacks is simple. The Hydrobak features an externally accessible 1.5 litre Omega water reservoir. It also includes front and rear reflectivity for an increased visibility.