Enjoy a fun and safe day out on the water in a Stearns Adult Unisex Infinity Series Hydroprene Life Vest, S/M, Yellow. A U.S. Coast Guard-approved life jacket made with hydroprene for an ultra-soft, comforting feel that's more resistant to rips and tears, this life vest is designed for comfortable all-day wear, and even has four adjustable chest belts and two large armholes for better movement. With webbed straps, an antimicrobial-treated shell, and closed sides, this life vest is sure to be with you season after season, whether you're on the boat, in the lake, or swimming at the pool.