A great value comfortable, stretchy Men's shortie wetsuit. With the Impact series you get a great measure of performance and technology at unbeatable value. The Impact series uses Alder's X-Stretch Neoprene on the arms and underarms for the ultimate fit and comfort. You'll also find a super comfortable collar and a genuine YKK zip.   Features SEAMS: FLATLOCKFABRIC: MAIN BODY / 3MM NEOPRENEFABRIC: ARMS & SHOULDERS / 2MM FLOFLEX NEOPRENESINGLE LINED TORSOGLIDE SKIN COLLAR PK PLASTIC ZIP We say: please refer to the size chart to help pick your size!