Built for hot summer days in the mountains, Castelli’s Climber's 4. 0 Jersey keeps us cool without sacrificing speed with its lightweight fabrics and rapid cooling properties. This high-alpine-focused jersey features the same aerodynamic CFD-based seam...
"What Our Gearhead® Experts Are Saying:""The Amplify Thermal Jersey is my go-to for those cool, crisp mornings when a lightweight jersey isn’t quite enough. The fleece-lined body traps warmth while the stretchy sleeves keep me moving freely. Plus,...
"What Our Gearhead® Experts Are Saying:""The Amplify Thermal Jersey is my go-to for those cool, crisp mornings when a lightweight jersey isn’t quite enough. The fleece-lined body traps warmth while the stretchy sleeves keep me moving freely. Plus,...