ColdPruf Men's Quest Performance Heavyweight Base Layer Pants - Built strong enough to withstand the harsh wilderness, but comfortable enough to keep you out there. So Versatile! Wear as a base layer or as a casual mid or outer layer Single Layer Engineering ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness Controls odor and inhibits bacterial growth on fabric Wicks and aids in moisture evaporation Brushed inside for warmth and comfort 85% Microfiber Polyester/15% Spandex Fabric Weight: 6.5 oz. Extended body and sleeves for ultimate athletic fit Comfort Waistband, Tagless, and flat seams for added comfort Gussets, front and back rise provide superior comfort and fit Style: 82B