CellBlock 13 Spartan Reversible HarnessThe Cellblock 13 Spartan Reversible Neoprene Harness is a must have! Strap it on and it highlights your back and shows off your chest. It's made of high quality neoprene rubber with a shark skin texture on one side and a coated colored or printed neoprene on the other side. The shark skin side is all black in color. Two straps with metal fasteners come down the front, connecting to either your jeans or to a matching Spartan Neoprene jockstrap (sold