Live Ultralight Members Get 10% Off + a 10% Rebate As Store Credit Immediately After Purchasing This Item! Sign Up or Log In To Your Membership Account Here Nothing comes between you and the trail thanks to the secure cuff and blister-free fit of this cushioned A 1/4 sock. Not even that pesky pebble that wants to wedge itself between you and your sanity. And when the trail turns to a scramble, the smooth, moisture-wicking Merino Wool will hold fast by your side. Height: QuarterWeight: Ultra-LightweightPair with: Running shoes, trail runners, athletic sneakersMaterials: 50% Merino Wool, 45% Nylon, 5% Lycra SpandexCushion: Yes Care: Machine wash in warm water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean. Darn Tough Unconditional Lifetime Guarantee Sizing Sock Size Shoe Size Women Women US Men US EU UK S 4.5 - 7 2.5 - 5 35 - 37.5 2.5 - 4.5 M 7.5 - 9.5 5.5 - 7.5 38 - 40.5 5 - 7 L 10 - 11.5 8 - 9.5 41 - 42.5 7.5 - 9