Features of the Smartwool Women's PhD Cycle Ultra Light Dazed Daisy Printed Micro Sock Virtually seamless toe for enhanced comfort 360Adeg Print Technology 4 Degree elite Fit system Shred shield Indestructawool Ultra light cushion Snow Mesh venting Fabric Details 44% Merino Wool, 52% Nylon, 3% Elastane, 1% Polyester