Our warmest and most protective base layer, designed for riding through the deepest winter. The Thermal Windproof Base Layer combines effective insulation with additional protection from wind and cold, making it an ideal foundation for your winter layering system.

A windproof front panel provides added protection across the chest, where you are most exposed to the wind while riding. The main fabric is constructed from Polartec® Power Wool™ with a wool grid backing, providing high breathability while retaining body heat for superior insulation.