AS M NK TF PANT TAPER100% POLYESTER Nike Therma FIT Men's Tapered Training Pants Your workouts don't stop when the cool weather begins, so we added supersoft fleece to our Therma FIT Pants. Designed to keep you feeling warm and comfortable wherever you exercise, their relaxed and tapered fit gives you plenty of room to stretch and squat without losing any range of motion. Nike Therma FIT technology helps manage your bodys natural heat to help keep you warm in cold weather