This Toshi long sleeve swim baby whales onesie is not only super cute but will protect your little one from the summer sun as they play and swim. Made from fast drying chlorine and salt water friendly fabric that provides UPF 50+ UV protection. Has long sleeves and a high neckline for greater sun protection and bottom opening press studs to make nappy changes a breeze! Made from 80% nylon and 20% elastane.