Zappos.com is proud to offer the Outdoor Research - Flurry Beanie (Plum) - Hats: A good winter hat means you spend less time worrying about heat loss and more time planning that perfect line down the mountain. ; Made with Alpin-wool™ Plus fabric, a wool/nylon blend exterior with soft fleece lining. ; Flat-seam construction eliminates abrasion points. ; 21 5/8 circumference (SM/MD) or 23 1/4 circumference (LG/XL). ; 63% polyester, 26% wool, 11% nylon. ; Wash separately from other garments. ; Circumference: 22 1 2 in ; Product measurements were taken using size SM/MD. Please note that measurements may vary by size.