Large Hi-Viz backpack made of a durable 600 denier polyester. With spacious features including an expanding mesh storage option in the front of the main compartment. Wet/dry storage keeps your necessities clean, dry and sanitary and wet gear separate. The zippered side pockets, water bottle holder and ventilated shoe compartments add to this pack's already impressive features. Comfortable, padded shoulder straps. Interior audio pocket with cord portal. Sturdy web haul loop & ID pocket.