Patagonia® Women's Capilene® Thermal Weight Bottoms are a breathable, lofted baselayer to keep you warm in cold conditions. Polartec® Power Grid® fabric with HeiQ® Pure odor control with smooth face for easy layering Open-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance Spandex for stretch and ease of movement Flat waistband has brushed inner elastic for next-to-skin softness Gusseted crotch for comfort and unimpeded mobility Flatlock seams to minimize chafing Slim Fit Certified as bluesign® approved fabric Fair Trade Certified™ sewn, which means the people who made it earned a premium for their labor Made in Nicaragua Product Features: Fabric:3.8 oz. Polartec® Power Grid® 92% Recycled Polyester, 8% Spandex with HeiQ® Pure odor control Inseam:32" Weight:4.9 oz. (139 g) Patagonia Women's Capilene Thermal Weight Base Layer Bottom