Thesepopular swim trunks feature a built in mesh liner, waist draw cord which your lil' man will love! Not only are they fun and stylish, but they are also UPF 50+, the highest rating in the UPF classification system. Pairs perfectly with the Kona Baby coordinating UPF 50+ rash guards and UPF 50. Great for the pool, the beach, or any outdoor play!