One Size Fits Most The Peter Grimm Shoal Lifeguard is made from 100% Stone Washed Palm Leaf, giving this hat a soft texture. The 5 inch brim provides excellent U.V. Sun Protection. An adjustable chin cord will keep your hat secure on a windy day. 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. High-quality metal grommets provide a vented crown for breathability.