Lightweight fabric and 37.5™ active-particle technology offer moisture and temperature regulation;Ultralight moisture-wicking material made from polyester;Natural materials eliminate odour molecules and never wash out;Longer body length and drop-tail tucks into shorts or bibs to prevent overexposure;Locker loop on collar makes the base layer easy to hang for quick drying after rides;Fitted cut provides a streamlined body fit for enhanced performance;