Xcel Wetsuits - Xcel GCS 2mm Short Sleeve Shorty Wetsuit - Black :: Men > Wetsuits. Flatlock Seams: Durable. comfortable. 7-thread seam construction lies flat and smooth against your skinOffset Back Zip Entry: Keeps the zipper off the spine to reduce pressure and increase flexibility and comfortUltrastretch Neoprene: Comfortable. durable & lightweight. Soft foam & a tighter weave textile for less water absorptionTexture Skin: Embossed rubber that provides excellent wind resistance in critical areas Size: MEDIUM SHORT,Medium/Large,Small.