The Womens Smartwool Microweight Bottoms are a perfect base layer for those cool months on the trail. These soft Microweight Bottoms are made from 100% Smartwool jersey knit that has a soft, natural stretch and effective moisture control, keeping you cool when its hot and warm when its not. The flatlock seam was constructed to avoid chafing, so you can have the comfort you need biking through the mountains or skiing down the slopes. Pair the Womens Microweight Bottoms with the Womens Microweight Crew and you will be ready to take on the challenge in style.