Premier Professional bag is the best buy for the money. Constructed of 1680 Denier Ballistic nylon w/ PVC (the same materials used in scuba gear) this bag is extra durable. The nylon is water resistant and the PVC lining keeps your contents dry. This bag has a roomy main compartment and four outside pockets, two 9"H x 11"W x 4"D zippered cargo pockets on each end, and two 9"H x 18"W outer pockets for added storage space. Easy to carry over 50 lbs comfortably with our adjustable non-slick padded "boomerang" shoulder strap. Two exterior velcro loops hold a flash light or baton.