With its 2L water bladder, various pockets, and its ventral and pectoral straps, the Z Hydro L is a lightweight bag thanks to its sleek design and the materials used. A zipped, velvet-lined pocket stores fragile items such as telephones, glasses. Foam reinforcements make the pack comfy and the adjustable straps means the bag can be adapted to the shape of the rider. It is made from PEVA and is guaranteed to be BPA-free. The water bladder is easy to clean and transport.