We incorporate a neoprene style cummerbund with a neoprene back panel to the 210 denier urethane coated nylon vest baffles. The combination produces a vest that is comfortable to wear, stays in place, and looks great! We also designed a 5 x 5-inch pocket on the back of the vest to hold waterproof valuables (or valuables sealed in Innovative Scuba 200 rated dry bags). 5 x 5-inch pocket on back with Velcro closure.