UFO Basic Pants with cold-weather smarts! These athletic wear pants feature gray quilted Thinsulate™ lining. Thinsulate™ dries quickly, holds body heat, and is warmer than down - without excess bulk. Five-pocket styling with deep front pockets. Easy-care machine wash. Button waist & drawstring waist with a zipper fly. These pants are just like the Basic UFO Pants (#80018) just with the added warmth protection.