The Onyx Mesh Classic Sport Vest is a more flexible and less restrictive life jacket for the active sportsman or woman. Large armholes for greater range of motion and mesh shoulders and back for maximum air flow keep you cool and comfortable while out on the water. The adjustable belts and chest strap keep the vest from riding up or shifting. Available in Sizes Medium through 4X-Large. This personal flotation device (PFD) is U.S. Coast Guard and Transport Canada approved.