The Surf Series UPF50+ Hat is designed to keep your child protected from the sun. With UPF 50+ UV sun protection, this hat offers excellent shielding from harmful rays. The floating brim design and mesh vents ensure breathability and comfort. The hat also features an internal pocket, shock cord crown adjuster, neoprene headband, and a removable neck flap for added convenience. With a size S circumference of 52cm and a size L circumference of 54cm, this hat is perfect for boys aged 8-16 years.