The Seaskin Mens 4/3mm back zip fullsuit is the best wetsuit at a reasonable price for anybody wanting a good performance and durability but at a budget costs. Our steamer uses the high quality flexible material and a mesh skin on the chest panel helps to retain heat, and provide extra warmth to the core. The material we use is light weight and high stretch, 4mm for the core area to keep body warmth, 3mm for the arms, shoulders and lower legs to keep the area have a full range movement, the easy entry back zip system make it highly durable and convenient.