Choose the right gear for your climate: S1 for above freezing, S2 for below. Profila Softshell fabric powered by 37.5™ active particle technology. Profila Thermal in back and underarms provides maximum warmth and breathability. Three open back pockets and two zippered security pockets. Thermal cuffs to seal in warmth. Reflective elements add contrast to enhance nighttime visibility. Fitted cut provides streamlined fit for all-around cycling performance.