A breathable, lofted baselayer to keep you warm in cold conditions, built from Polartec® Power Grid® 92% recycled polyester/8% spandex fabric with HeiQ® Pure odor control. a Fair Trade Certified™ factory.Workbook FeaturesMade from Polartec® Power Grid® 92% recycled polyester/8% spandex fabric with a smooth face for easy layering and HeiQ® Pure odor control to keep things fresh for longerFabric's open-grid pattern next to the skin provides superior warmth, breathability and moisture-wicking performanceSpandex for stretch and ease of movementFlat waistband has brushed inner elastic for next-to-skin softnessGusseted crotch for comfort and unimpeded mobility; flatlock seams minimize chafing22in inseam hits at the upper calf, above boots a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor