evo.com | Fox Racing Jerseys > The fastest jersey in Fox's lineup is ultralight, aerodynamic, and ready for that down-country life. The Fox Racing Flexair Ascent Short-Sleeve Jersey marries a second-skin fit with Carvico-reinforced sleeves and smart ventilation to keep you cool whether you're chasing KOMs or simply exploring new trails. HPS Back 29" Carvico Sleeves and Rear Yoke for Abrasion Resistance and Venting Aerodynamic and Close-to-body Fit Lightweight Bonded Front Hem, Sleeves, and Neck Openings Reduce Chafing 73% Polyester / 19% Polyamide Nylon / 8% Elastane | Fox Racing Flexair Ascent Short-Sleeve Jersey 2025 - Small in Black | Nylon/Elastane/Polyester