The Patagonia Women's Capilene Midweight Bottoms are a super versatile baselayer: warm, breathable, quick-drying, and with HeiQ® Pure odor control for daily use. It hits the sweet spot between weight, breathability, and wicking performance, so you can wear this piece alone or under layers to stay dry and comfortable during high-exertion activities in cool-to-cold weather. Capilene® Midweight has a smooth face for easy layering, a forgiving stretch that moves with you, and an internal diamond-grid pattern that rests lightly on the skin to trap warmth. The hollow-core yarn construction increases wicking performance and speeds dry times. Features include a brushed-elastic waistband for next-to-skin softness, a gusseted crotch for mobility, and flatlock seams that minimize chafing. Very nice!