The 100% polyester Batman Color Streaks Toddler Board Shorts are perfect for your little caped crusader who wants to hang up his cape for an afternoon and hit the beach! Though, he might not want to hang up the cape, it might help with his balance on that surf board! Wooooo, hang tight! I wonder if Batman ever hits that perfect wave? And if so, would he do it while wearing his mask and trunks with capes on the back? Hm. So yeah, the liner of the Batman Color Streaks Toddler Board Shorts are also 100% polyester and they are UPF 50+ protected! Batman wouldn't want one of his adoring fans to get sunburn now would he?