All-day sun protection, wet or dry—Our infant and toddler rash guards keep baby covered all day, in and out of the water, reducing sunscreen needs in those areas. UPF 50 sun protection—UPF 50  rash guards offer the highest sun protection available, blocking 97.5%-99 % of harmful UV rays. Stretchy, quick-dry material keeps baby comfortable—Our baby swim shirts also feature flatlock seams and raglan sleeves so baby can move and play freely without irritation. Half-zip front closure—Easily pull on-and-off without too much fuss.