Sizes: Swith leg strap, 30 50 lbs., L50 90 lbs.. Whether they're on a boat, a tube, water skis or a personal watercraft, your children will have a blast wearing the Stearns Classic Series Life Vest. It comes in two sizes, specially fitted for your kids. The Coast Guard approved life jacket is designed with open sides with three adjustable chest belts for a great fit. The smaller size, for kids 30 50 lbs, has a crotch strap for a more secure fit and better movement. Durable nylon construction and PE flotation foam, along with 1 in. 2.54 cm webbed straps will allow you to use this vest, season after season. Coast Guard approved life jacket. Great for a day on the boat or beach and in the pool or lake. For use on a boat, a personal watercraft or for tow sports. Two sizes: S fits kids 30 50 lbs, L fits kids 50 90 lbs. Adjustable 1 webbing straps and open sides for better fit. Small size has crotch strap for added security. Durable construction: Nylon shell, PE foam.