1/2 Sheet - 40" long X 54" wide X 3/16" (4mm) thick of high quality Closed cell Neoprene Sponge Rubber with 4 way stretch nylon for wear protection on both sides. Royal Blue on one side and black on the other side. The neoprene sponge rubber inside is black. Applications include, wetsuits, dry suits, bathing suits, cases, sound and dampening insulation. gloves, jackets, hoods, booties, etc. Waterproof, UV and Ozone and chemical resistant. Super soft and very stretchable, flexible and comfortable. Best Prices on Etsy for REAL QENUINE neoprene. Check out our additional listing for one full sheet which is double this size.