Columbia Big & Tall Ridge 2 Run Ii Pant Omni-Heat thermal reflective Omni-Tech waterproof/breathable fully seam sealed Leg venting. Waist adjustable tabs. Zippered hand pockets. Articulated knees. Zippered hand pockets. Back pockets Omni-Tech Legacy Twill 100% nylon, Omni-Heat Reflective Microtex Light 100% polyester