Constructed with lightweight, durable flotation foam for comfort and safety for water activities, the Onyx Outdoor⢠General Purpose Vest features nylon and polyester twill construction for comfortable, durable wear. Designed with adjustable belts and a chest strap to prevent the vest from riding up, the vest also features an open-sided style. USCG approved. Onyx Outdoor General Purpose Vest - Flotation at Academy Sports