A Smart no-zip buoyancy device that allows a wider size range fit, Engineered and certified according to the highest UL and CE safety standards. Essential safety gear for all water sports, Durable nylon inner-and outer shell protective material,Multi-layer beveled PE foam inner buoyancy panels with segment hinge on back for ultra comfort, Anatomically cut with oversized armholes for more flexibility and freedom of movement in the upper arm and shoulder area, Heavy duty quick-release buckles with adjustable belt straps, Strategically placed drain holes avoid water accumulation inside the vest.