The SmartWool NTS Lightweight 195 Baselayer Running Pants provide great thermoregulation and moisture-management qualities, keeping you cool and comfortable whilst exercising. Merino wool is a natural fabric, and is great for regulating your body temperature and heart rate due to its natural breathability and moisture-management properties. This happens easily when wearing the natural wool in comparison to a synthetic fibre. The SmartWool NTS Lightweight 195 Baselayer Running Pants wick sweat away from the body to keep you dry, and also trap air in its fibres to keep you warm. The pants are lightweight and slim-fitting, creating warmth without adding bulk for a more comfortable fit.