High-tech base layer with thermoregulation based on body-mapping and targeting the muscles. Designed for optimal performance in cold conditions. In winter, choosing the right base layer can be the most important thing to be able to stay outside longer and not have to cut your training short. The On/Off base layer is ideal for all outdoor sports. Our unique On/Off technology, which literally breathes with you, regulates ventilation and protection depending on the intensity of your movement during training. As the intensity increases, your chest expands to take in air. In doing so, the alveoli in the fabric open to reduce compression and, conversely, increase breathability. If your effort decreases, such as when riding downhill, these alveoli close to protect you and keep you warm. Clever body-mapping makes these perforations vary depending on the size of the lower body. The openings are larger in less sensitive areas and smaller in more sensitive areas. The result is a quick-drying material, high-performance thermoregulation in all situations, where your body temperature is maintained at a stable level, regardless of external conditions or intensity of movement. The bottom are made of seamless microfiber, which is soft and does not rub against your skin. In addition, it has natural antibacterial properties that fight against odor and irritation. This is a base layer that will not only keep you warm and dry, but also support your efforts regardless of discipline and intensity.AdvantagesOn/Off technology with points mapping according to genderSeamless fit, like a second skinThermoregulation, high protection and breathabilityActivity Type: RunningAge Group: AdultOriginal Colour by Producer: GreyColour: GreyMade in: PortugalGender: MaleSize: SSpecial Features: Fast drySpecial Features: Thermo-RegulationSpecial Features: StretchSuitable for: MultisportSuitable for: Running: Functional Underwear: Running (CMS): Male (CMS): Adult (CMS)