Watershed's Wheelie Tramp Mesh Duffel is designed to carry all your equipment needed for a full day of scuba diving, including your tank! Stop making multiple trips from the dock to the boat. The Wheelie is made of heavy-duty polypropylene trampoline mesh that has a very tight weave. This makes it virtually impossible to see through, only then at the most oblique angles, but it is strong and breathable. The rigid back and base are reinforced, and heavy-duty webbing completely encircles the bag for added strength. Recycle your old PVC gear bag that's riddled with holes and digs a groove into your shoulder and upgrade to the last adventure gear bag you'll have to buy.