Approved for Boating - Our Tropic life vest is approved by the U.S. Coast Guard Safety First - Includes 4 body belts with easy-release buckles; children's sizes include crotch strap for extra safety. Versatile - Can be used on any body of water; take it boating, to the beach, lake or swimming pool. Comfortable - Soft-woven 200D polyester shell for comfortable all-day wear. Size - Available in 7 sizes for Child, Youth and Adult.