The Peter Grimm Coralia Packable Sun Hat is your perfect travel accessory. It's, packable, has a chin strap, and provides UV protection. Charcoal One Size Fits Most The Peter Grimm Coralia Resort Hat is made from 100% Toyo. The 4 inch brim provides excellent UPF 50+ Sun Protection. The elasta-fit comfort band allows enough stretch to fit most men and women. This hat is packable and can be rolled up or folded to fit nicely in your bag for safe travel and still look great when you arrive at your destination. An adjustable chin cord will keep your hat secure on a windy day. UV protection. Details 100% Toyo Straw, Crushable. Packable. No wire brim. 4.5" brim.