The Aspire offers a thin, breathable feel and firm compression for enduring performance on rides. Engineered with moisture-wicking fibers, it keeps feet dry, secure, and supported up to mid-calf. FEATURES: Engineered with an ultra-thin profile to deliver unparalleled fit & feel Signature Olefin fibers wick moisture, keeping your feet cool, dry, and blister-free Grips the contours of your feet to support the arch and help reduce fatigue SPECS: 79% Nylon / 18% Olefin / 3% Spandex