Columbia Sportswear Men's South Peak Interchange Jacket Shell: 100% nylon 2L Tech Ripstop. Lining: Omni-Heat Reflective Microtex light. Insulation: 100% polyester microtemp XF II 100gm. Liner: 100% polyester smooth micro fiber Imported Synthetic Insulated Liner Omni-Heat Thermal Reflective Omni-Tech Waterproof/Breathable Fully Seam Sealed Zip-in and 3 Point Interchange System Removable, Adjustable Storm Hood