Smartwool Run Zero Cushion Ankle - Women's Low Cut Socks Shoes : Black : The primary materials that compose this product contain a minimum of 20 percent recycled content. Durable, breathable, odor-resistant, and impeccably comfortable, the Smartwool Run Zero Cushion Ankle Socks deserve a place in your athletic wardrobe. 4-Degree Elite Fit System construction uses two elastics to provide better stretch and to keep your sock in place. Indestructawool is engineered to provide maximum comfort and durability. Shred Shield reduces wear and tear on the toes for added durability. Virtually Seamless toe is designed for all day comfort and to minimize chafing. Mesh panels on the out-step help provide added breathability. Branding on the toe. Sits at the ankle. 45% Merino wool, 31% nylon, 21% recycled nylon, 3% elastane. Machine wash, tumble dry. Made in the USA.