In fickle or fair weather, the Sunday Afternoons™ Ultra Adventure Storm Hat will be your perfect companion. Storm hat is 100% waterproof with fully taped seams to keep you dry. Hat features an integrated wicking mesh liner for enhanced breathability, a reinforced brim structure, and a long neck cape to protect against harsh sunlight. Reflective detailing on back of hat provides visibility in low light conditions. Sunday Afternoons™ hats come with a lifetime guarantee through the brand against material and workmanship. 78% nylon, 22% polyester;Lining: 100% polyester. Hand wash, line dry. Imported. Product measurements were taken using size SM/MD. Please note that measurements may vary by size. Measurements: Circumference: 22 in Brim: 3 1⁄2 in View Zappos.com Glossary of Terms Sunday Afternoons Ultra Adventure Storm Hat