Not only do these merino socks keep you itch and odor free, they make sure you stand out on your next trek up the mountain. Reinforced Heel/Toe Shock Absorption Stay Up Power Comfort Toe Seam Arch Support Breathable 52% Merino Wool, 44% nylon, 2% polyester, 2% spandex Style #2021 Care Instructions How should I take care of my new favorite Fox River items?SOCKS - Machine wash warm, inside out. Do not bleach. Tumble dry on low. Do not iron. Do not dry clean. Note: Care Instructions are listed on each product page and on every package.HANDWEAR - Hand wash, warm with mild detergent or soap. Gentle hand wring. Dry flat.