Columbia Sportswear Women's Fierce Force Pant Shell: 100% novelty crossdye polyester. Lining: 100% omni-heat reflective microtex light polyester. Insulation: 100% 86g microtemp polyester Imported Adjustable Waist Omni-Heat Thermal Reflective Omni-Tech Waterproof/Breathable Fully Seam Sealed Insulated, 60gsm Internal Leg Gaiter