FEATURES: 1.Patented Full Contact Fit® hugs the contours of your foot and stays put so there are no loose socks to rub you the wrong way. 2. Complete coverage, high-impact cushioning around the entire foot. 3. Crew height rises just below the calf. 4. Nylon high-abrasion zones in the heel. 5. Super-fine Merino wool touching your entire foot.