The New Outdoor Research Wind Warrior Hat (Black) Cold Weather Hats, unisex, Hats , Knit , Cold Weather, LG/XL (7 3/8-7 5/8), true, Brave Mother Nature's worst with the right weapon - the Wind Warrior Hat blocks brutally cold winds and keeps you warm even if it gets wet. WINDSTOPPER Technical Fleece blocks freezing wind from cutting through. Polartec Wind Pro ear panels improve hearing in windy conditions. Soft fleece lining. Four-panel crown construction. Back stretch panel. Contoured ear band. 23 circumference. 100% polyester. Machine wash cold and tumble dry low. Measurements: Circumference: 23 in Product measurements were taken using size SM/MD (6 7/8-7 1/8). Please note that measurements may vary by size.