Building on the success of the iconic Original Adventure Hat, the Sunday Afternoons Ultra Adventure Hat has an updated look and technologies like a Clamshell Brim(TM), Sunglass Lock(TM) and more. Sunday Afternoons brings in the next age of adventure!UPF 50+ sun rating.3A 1/4" folding Clamshell Brim(TM).6" neck cape.UPF 50+ crown ventilation.Sunglass Lock(TM) keeps glasses in place.Wicking sweatband.Water and stain resistant.Adjustable sizing.Wt. 2.6 oz.