100% Polyester,Imported,An Insulated Version Of The Best-Selling Legendary Pant To Give You Added Warmth On Cold Days,2-Ply Fabric Construction, 2-Way Mechanical Stretch, Helly Tech Performance - Waterproof, Windproof And Breathable,Fully Seam Sealed, Durable Water Repellency Treatment (DWR), Fully Insulated With Primaloft Black Insulation 60G,Inner Thigh Venting Zippers, Boot Gaiters With Silicone Gripper, Dual Hand Pockets And Back Pocket, Waistband Adjustment,Articulated Knees For Optimized Movement, Reinforced Bottom Outside And Inside Hem