Tuga Boys Two-Piece Short Sleeve Top & Swim Diaper Set, UPF 50+ Swimsuit 80% Nylon/20% Spandex Imported Our 2-piece swim shirt and swim bottom set for baby boys, infants and toddlers is designed with fun prints and offer great sun protection for boys 6 months to 4T. PLEASE SEE SIZE CHART TO LEFT TO FIND BEST FIT. 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. SAFE: Tuga bathing suits are made from fabrics that are free of sunscreen chemicals, great for sensitive skin. We make skin safe and reef safe products! PRODUCT FEATURES: Rash guards with raglan sleeves, high neck design + regular fit for optimal sun protection, logo at front. Re-usable swim diaper with elastic waist/legs, waterproof soft lining effective at containment, won't swell like traditional diapers, washable. QUALITY + COMFORT: Flat lock stitching for extra durability, 4-way stretch and quick drying fabrics for ultimate comfort at the beach, pool, and pretty much anywhere.