2XU Men's Elite Compression Alpine Socks 100% Other Fibers Imported Benefits: muscle containment for reduced vibrations & oscillation, less muscle fatigue & damage | graduated compression fit for circulatory benefits & faster recovery | anatomical left and right sock for perfect fit Features: x:lock support System for arch and ankle | light padding to shin and foot bed for greater comfort and protection | moisture management | seamless linked toe cage for added comfort Fabrics: invista Lycra for Certified Gradient compression | medical circular 360 degree knit construction creates a consistent yet powerful pressure Active + recovery: ski, snowboard, tele mark, snowshoe, Nordic, training and competitions | post Snow recovery, sleeping and DVD protection when traveling Warranty + care: 12-month Warranty with proof of purchase from an authorized 2XU seller. Machine wash in cold water and hang to dry