The Fits Business Crew Socks are very comfortable, breathable socks that will manage moisture and look great all day long. This is the sock that you will not take off when you get home from a busy day.Features:Fits patented Full Contact Fit hugs the contours of your foot and stays put so there is no loose socks to constantly have to pull upSuper-fine Merino Wool for comfort and performanceMild compression around the foot and leg for an invigorating feelingCrew height rises just below the calfFull contact welt to avoid slippageSuper-fine Machine WashableMade in the USAFabric: 51% Merino Wool, 36% Nylon, 9% Polyester, 4% Lycra Men apos;s Sizing by Shoe Size: S: 3 1/2 thru 5 1/2 M: 6 thru 8 amp;nbsp;8 1/2 thru 10 XL: 10 1/2 thru 12 1/2 XXL: 13 thru 15 1/2 Women apos;s Sizing by Shoe Size: S: 5 thru 7 M: 7 1/2 thru 9 1/2 L: 10 thru 11 1/2 XL: 12 thru 14 XXL: 14 1/2 thru 16 1/2