Columbia Men's Bugaboo II Pant - 2017 Style 100% Other Fibers Made in USA or Imported Omni-Tech waterproof/breathable critically seam sealed. Insulated Exterior adjustable waist tabs Articulated knees Reinforced cuff guard Internal, adjustable leg gaiter Lining - 100% polyester tricot Omni-Tech Waterproof/Breathable Internal Leg Gaiter Exterior Adjustable Waist Articulated Knees