These ribbed socks are made from a comfortable blend of organic cotton and REPREVE®, a fiber made from recycled plastic bottles. The dusky-blue shade will be a nice pop of color as part of otherwise neutral outfits.- Plain-knit footbeds- Organic cotton is grown from non-genetically modified seeds without chemical fertilizers or pesticides86% Organic cotton, 12% REPREVE® recycled polyester, 2% Elastane / Machine washable