The most copied design in scuba diving, our Panama Mesh Backpack is the "original" design and features two new 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 bottom uses reinforced 18 gauge PVC nylon. As a bonus in every bag, we supply a 12" x 12" mesh drawstring bag.