Sunway UV Boys' Swimsuit Short Sleeves Overall UPF 50 (4-5 Years) Overall sunsuit made from protective UPF50+ fabric The sunsuit is fitted, dries quickly and is comfortable to the touch. Our UPF50+ fabric blocks more than 98% of both UVA & UVB rays. Size 3-4 Years: 90-104 cm / 35-41 in ---- 14-17 kg / 31-38 lb