Whether they're on a boat, a tube, water skis or a personal watercraft, your children will have a blast in Stearns Child Classic Series Vest. They're specially fitted for children 30-50 lbs. The US Coast Guard-approved life jacket is designed with open sides and three adjustable chest belts for a tight fit and better movement. A leg strap keeps the vest from riding up in the water. Durable nylon construction and PE flotation foam, along with 1-in. webbed straps, will allow you to use this vest season after season.