This is a UPF50+ kids sun hat with unique 'anti-flop' brim that won't flop in front of children's eyes (even when wet!) These amazing swim hats are made of high quality chlorine resistant stretch nylon knit perfect for the pool! Swim hats are best for use in a wet environment - at the beach, lake, swimming pool or splashing about under the hose! If you are looking for a hat for everyday use - we always encourage using our Cotton hats instead. A cotton rich hat will be much cooler for everyday use.