The O'Brien Flex V-Back is a flexible and lightweight life jacket that's safe, comfortable and U.S. Coast Guard approved. It comes with multiple hinges and the V-Back stretch panel for optimum mobility. The full front zipper and two adjustable belts keep things snug and secure, while it is also made from BioLite technology, which is lighter, breathable and more environmentally friendly than neoprene.***Please be sure to check your states Life Jacket State Requirements*** Features: Breathable Material, Available Sizes: XS / SM / M / LG / XL