Our RBNY Whale Logo Sun Booney is a must-have for outdoor enthusiasts and beachgoers seeking sun protection and comfort. The moisture wicking and cool fit fabric keep you comfortable and dry in any activity. With a UPF rating of 50, this hat blocks out 98% of the suns rays and comes with a built-in snap up visor and adjustable chin strap. Size L/XL: 7 1/4 - 7 5/8, 58-61cm, 22 3/4"-23 7/8".