SunBusters Boys One Piece Short Sleeve Sunsuit, UPF 50+ Sun Protection 80% Nylon/20% Spandex Imported Sun protective swimsuit with full-length short sleeves perfect for babies, infants, toddlers and up to 10 years EXCELLENT SUN PROTECTION: Swimwear fabrics are rated UPF 50+ and provide maximum UV sun protection by blocking 98% of UVA + UVB sun rays, wet or dry; similar rating as SPF for sunscreens. Covered areas don't need sunscreen. Bathing suit designed with high collar for optimal sun protection, front zipper with zipper flap, color blocked Plastic snaps for sizes 3/6 months up to 2/3 years. Cool design at chest and SunBusters logo at front Flat lock stitching for superior quality with soft, quick drying and 4 way stretch fabrics