This is the Bare Men&';s 7mm Velocity Step-in Hooded Vest for Scuba Diving Features: Layers perfectly with the 7/6 or 5/4 Velocity Full Attached 7mm vented hood with 5mm skin-in face seal Skin-in seals around the shoulders Heavy-duty front zipper Double glued with SECURE-LOCK construction Model #003142 A progressive-stretch vest, which layers perfectly with a 7 or 5mm full suit, that provides additional warmth.