Columbia Sportswear Boy's Alpine Action Jacket Shell: 100% nylon Legacy Twill. Lining: 100% polyester Omni-Heat Thermal Reflective Microtex Light. 100% polyester microfleece. Insulation: 100% polyester Microtemp, 100g Imported OUTGROWN Grow System Omni-Heat Thermal Reflective Omni-Tech Waterproof/Breathable Critically Seam Sealed Insulated, 100g Attached, Adjustable Storm Hood