Polartec® Power Stretch® fabrics feature body-hugging 4-way stretch and are very breathable. They keep you dry when you sweat and provide warmth without weight. Moisture and high relative humidity next to the skin cause discomfort.
Polartec® Power Stretch® keeps the skin dry through three complementary mechanisms:
1. The fabric is highly breathable and does not restrict the movement of moisture vapor.
2. “Touch Points” on the fabric inner surface draw off the sweat. Sweat is wicked off the skin to the outside of the fabric, where it spreads rapidly for evaporation.
3. When the sweat reaches the outside of the fabric, it spreads out to many times its original surface area, enabling it to dry at least 2 times faster than cotton.