IST WSS0150 Adult 5mm Neoprene Front Zip Shorty with Super-Stretch Panels 5mm neoprene front zip shorty, a great choice for suit layering Super-stretch armpit panels for uninhibited movement Heavy-duty, corrosion-free #10 YKK zip at the front for extra-easy donning and doffing Zipper gusset and double blind stitching throughout to reduce water seepage Snug, performance-enhancing fit, anti-abrasion shoulder surface