a Adjustable belts, hidden lower belt tunnel, and chest strap for a secure fit a Lightweight durable flotation foam a Slim foam design with flexible segments for comfort and mobility a Open-sided styling and open neck design for added comfort and greater range of motion a U.S. Coast Guard approved and Transport Canada approved a ITEM #103700-100-00X-18 (RED); #103700-500-00X-18 (BLUE)