Xcel GCS 2mm Shorty Mens Summer Wetsuit in Ink Blue BACK ZIP ENTRY Traditional back zipper for extra easy on/off. TEXTURE SKIN Texture embossed rubber that provides excellent wind resistance; ideal for outer chest panels hoods, and other areas that would otherwise lose warmth quickly. FLATLOCK SEAMS Durable, comfortable 7 thread seam construction lies flat and smooth against your skin. LESS SEAM = MORE STRETCH Smarter product design means minimizing seams to maximize stretch. Any seams used are always pre-bent and contoured for a truly engineered fit.