The Flap Happy Fun in the Sun Hat UPF 50 : Designed to provide excellent sun protection from damaging UV rays. The hat has a large brim to shade the face, ears, and neck from the harsh rays of the sun with an elastic band to help fit snuggly around the head. This hat looks terrific when paired with Flap Happy Swimwear or Playwear. Perfect for outdoor or water activity! Fabrication: 83% Repreve Recycled Polyester 17% Spandex / 80% Nylon 20% Spandex