This is the Tilos Men&';s 5/4mm Titanium Cold Water Semi-Dry Seal Suit for Scuba Diving Features: 5mm Titanium body 4mm Titanium sleeves & lower legs Skin seal at neck, back zipper & wrists Double watertight glued throughout entire suit Blindstitched outside & inside entire suit Back water barrier YKK #10 metal zipper head Back key pocket Prebent Tatex kneepads Water barrier YKK #8 ankle zippers This 5/4MM Titanium One Piece Wetsuit is a great divesuit at a price you can afford. Be comfortable and look great at the same time.