Columbia Men's Lhotse II Interchange Jacket 100% Other Fibers Imported Omni-Heat thermal reflective liner Omni-Tech waterproof/breathable fully seam sealed Zip-in and 3-point Interchange System Synthetic insulated liner. Removable, adjustable hood, Snow seal, Underarm venting Waterproof zipper. Interior security pocket. Adjustable sleeve cuffs. Drawcord adjustable hem. Drop tail Insulation: 100% polyester Microtemp XF II, 100g Omni-Heat Thermal Reflective and Insulated Liner Omni-Tech Waterproof/Breathable Fully Seam Sealed Zip-In and 3-Point INTERCHANGE SYSTEM Underarm Venting