AERO-OPTIMIZED PERFORMANCE: Designed to deliver maximum speed and aerodynamic efficiency, the EVO Jet Aero Socks feature an advanced form-fitting construction that reduces drag and saves over 24 watts at 38 mph compared to bare legs. Whether you're racing a time trial or chasing a PR, these socks give you the edge when every watt counts. PROVEN ON THE WORLD STAGE: Trusted by pro athletes during the 2023 Tour de France, the EVO Jet has been rigorously tested in the harshest race conditions. From long, grueling climbs to high-speed descents, these socks have performed flawlessly at cycling’s highest level, providing elite riders with a noticeable advantage. LIGHTWEIGHT AND COMPRESSIVE: Crafted using DeFeet’s thinnest and most compressive knit technology, the EVO Jet hugs your leg for a supportive fit that reduces muscle vibration and fatigue over long distances. The sock stays locked in place without bunching or slipping, so you can focus on the road ahead. MOISTURE-WICKING AND BREATHABLE: Engineered with bi-component carbon core fibers that are both moisture-wicking and antimicrobial, the EVO Jet keeps your feet cool, dry, and odor-free—even on the hottest training days. This ultra-light sock is breathable enough for maximum comfort without compromising performance. MADE IN THE USA: Designed, knit, and tested at DeFeet’s headquarters in North Carolina, the EVO Jet represents over 30 years of cycling innovation. Every pair reflects a commitment to domestic manufacturing, sustainability, and delivering elite-level gear that’s built to go the distance. The Evo Jet is an aero crew sock engineered to maximize gains for monumental results. Wind-tunnel tests show a savings of 24+ watts at 38 mph compared to a bare leg. Available in two cuff heights: Short is 6.75" (17cm); Tall is 8" (20cm).