Open Box Stahlsac Panama Mesh BackpackThe most copied design in scuba diving, the Stahlsac Panama Mesh Backpack is the original design and features two high density foam padded shoulder straps, extra durable polyester mesh, duffel bag handles and our unique zippered dry pocket inside that combines with a wet pocket outside. The bottoms built from reinforced 18 gauge PVC nylon to combat the wear and tear of your active coastal lifestyle, and, as a bonus in every bag, we supply a 12? x 12?