Men's sleeveless wetsuit for open water swimming and other water sports. The suit is made of DSSS treated neoprene (without GLIDESKIN coating) in different thicknesses - on the belly, chest and back the neoprene is 3 mm, which provides additional buoyancy. In other areas of the wetsuit it is 2 mm thick, giving you greater freedom of movement and flexibility. DSSS neoprene combines lightness, flexibility and durability to provide good buoyancy and good thermoregulation while swimming. When correctly fitted, the suit sits perfectly and does not chafe or limit movement. The flat seams do not chafe even during long swims. The YKK ZIPPER (Japan) is on the back and gives you comfortable one-hand access, allowing you to quickly put on or take off the wetsuit. The zipper has an external flap to prevent it from opening accidentally and is fastened with Velcro. The sleeveless model is easier and faster to take off, which is important for maintaining speed in the transit zone, plus the lack of sleeves provides greater freedom of movement in the chest and shoulder girdle. In warm weather the suit is perfect for open water swimming, as well as freediving, snorkeling, SUP surfing, water skiing, wakeboarding and other water sports. The sleeveless wetsuit is also comfortable for athletes who have wide shoulders, or arms, for whom closed wetsuits can cause discomfort.