Natural warmth and comfort is what you'll enjoy, when you slip on the Buff Merino Wool Reversible Hat. This hat features a reversible double layer of 100% merino wool, a natural insulator that controls odor while it wicks and dries to manage moisture, and tubular knit construction with minimal seams for next to skin comfort. Ideal for low intensity activities, this hat has a fun loving, laid back slouchy style. 100% natural merino wool is water repellent, odor resistant, durable, with natural stretch. Reversible, so you get two hats in one. Moisture management, dries quickly. Cool weather thermal protection : 14f 41f. 2 way lateral stretch. Eco friendly, made with natural fibers. One size fits most adults.