For high-end performance and exceptional lightweight breathability, these Factory Pilot Socks with exclusive moisture wicking fabrication deliver every time. A ribbed design on the calf helps prevent slippage, and a ribbed instep panel offers added support where you need it most. They're finished with an oversized Ellipse on the calf. Hydrolix moisture management system helps keep you cool, dry, and comfortable. Ribbed fabric on calf and instep for added support and slippage control. Oakley Ellipse logo on calf. 63% Polyamide, 33% Polyester, 4% Elastane.