ColdPruf Women's Extreme Performance Dual Layer Bottom 96% CPT Performance Polyester / 4% Spandex Imported Tagless Garment with Flat Seams and Gussets for Comfort Front and Back Rise for Superior Fit ColdPruf Technical Fiber Polyester with SILVADUR Intelligent Freshness. Odors Off. Fresh On! True Sizing for Accurate Fit and Ring Spun Yarns Provides Exceptional Softness Thermachoice System: Very cold to Extreme Cold Weather / Medium to High Activity