Smartwool Sport Thermal Bottoms

Smartwool Sport Thermal Bottoms: The highly breathable Smartwool Sport Thermal Bottom is designed for athletic people on the go. Great as a next-to-skin layer in colder weather or as a primary layer in warmer weather, the Smartwool Sport Thermal Bottom moves moisture away from the skin in its vapor state, so no more getting cold when taking a break due to wet, clammy skin.