EcoNaps baby & toddler onesies are perfect for total sun protection when your mini is in ( and out ) of the water.Made from 92% Recycled Polyester and 8% Spandex for a soft and stretchy feel, our onesies deliver UPF 50 sun protection to guard delicate skin. For easy dressing, there is a front zip and crotch snaps for quick nappy changes (and toilet breaks). A spring and summer must-have that pairs beautifully with our swim hats and towels.