Features of Smartwool Men's Cycle Zero Cushion Ankle Sock 4 Degree elite Fit system for a dialled-in, Performance-oriented Fit Shred Shield Technology reduces wear from toes Mesh zones for added breathability Virtually seamless toe for enhanced comfort Overall 3.25" height Height: Ankle Zero cushion Fabric Details 47% Merino Wool 12% Nylon 37% Recycled Nylon 4% Elastane 47% Merino Wool 12% Nylon 37% Recycled Nylon 4% Elastane