The Assos Thermobooster Base Layer, a new thermal textile, is a highly elastic warp knit designed to contour your body with an aerodynamic, second-skin fit. Its breathable construction ensures comfort during high-intensity efforts, making it ideal for both steady rides and all-out sprints. When temperatures or exertion levels rise, the ThermoBooster P1 can be compactly packed to the size of a rain jacket, easily fitting into a jersey pocket for on-the-go convenience.

This versatile piece transitions seamlessly across seasons. Wear it over a thin base layer or summer-weight jersey in spring and fall for lightweight insulation, or layer it beneath stormproof outerwear in deep winter for added thermoregulation. Its adaptability and performance make it an essential addition to any cyclist’s wardrobe.