This is the Tilos Mens 1mm Helios Long Sleeve Shorty Spring Suit for Scuba Diving, Snorkeling, Water Sports Features: 100% MetaLite coating on entire suit MetaLite coating reflects" warmth back to the body, increasing heat retention Retains as much as 2mm ~ 3mm suit Dries faster than standard neoprene as the MetaLite lining sheds water naturally Allows you to feel dry and warm, even after your second dive Adjustable velcro collar Back key pocket Flat-Stitched throughout Front YKK #10 metal zipper head "