QUIKSILVER Mens Highline Plus 4/3mm Chest Zip Steamer Wetsuit - Featuring 100% StretchFlight x4 neoprene, Thermal Smoothie on the chest and back panel, and rounded out with a WarmFlight Far Infrared x2 thermal lining on the body and upper leg panels with Diamond Deluxe. This chest zip wetsuit for men joins the squad in the Quiksilver Surf Collection.