Woolrich Mens Techno Merino Wool Hiking Boot & Athletic Crew Socks (1 Pair) 50% Merino wool, 47% Nylon, 3% Lycra Made in USA Machine wash warm, Inside out, Do not bleach, Tumble dry low Seamless toe, arch and ankle support Light weight comfort Merino Wool moisture management Great boot, day hiking or athletic sock Keep your feet cool in warmer climates and warm in cooler climates