The primary materials that compose this product contain a minimum of 20 percent recycled content. Stay warm and comfortable all day in the Smartwool(R) Run Targeted Cushion Compression Over-The-Calf socks. The color-blocked design perfectly complements the compression to help boost circulation. The bold style features branded designs on the cuffs and soles. 49% merino wool, 31% recycled nylon, 12% nylon, 8% elastane. Machine wash on cold, inside out. Tumble dry on low heat. t. Made in the USA.