UV Sun Protective Swimsuit for Baby-Boys - Baby Rock - Elly La Fripouille Nylon and Spandex UV and sand protection swimsuit Upf 50 + uva and uvb maximum protection - embossed fabric Oeko tex standard 100 (free of any rogue material) On the edge seams for comfort (no sores with zipper) 80% nylon / 20% spandex