A versatile, packable, and ultrabreathable thermal layer for high-intensity riding, updated with pockets for use as a jersey for cool conditions or as a midlayer for additional core protection in the coldest, most challenging conditions.

The new thermal textile is a highly elastic warp knit that wraps your body’s contours with an aerodynamic silhouette. It’s also breathable enough for full-gas efforts, and if the temperature or riding intensity get too high, the ThermoBooster P1 compacts to the size of a rain jacket to stow in a jersey pocket. The versatile textile and second-skin fit span seasons – wear it over a skin layer or summer-weight jersey in the spring and fall, and layer it beneath stormproof protection for added thermoregulation in deep winter.

Composition: 84% Polyamide 16% Elastane