Offering the world's most efficient moisture management system, the Smartwool NTS Midweight Boot Top Bottoms for Girl offers next to skin softness and a covered elastic waistband for all day comfort. Worn alone while chilling in yurt on a backcountry ski trip or layered up when on a grand traverse, the NTS Midweight Bottoms are a technical midlayer that won't cramp your Design or your boots.