The Nike Therma-FIT Fitness Sweatpants are engineered to keep your training momentum going when temperatures drop. Featuring an open-hem design for a relaxed, classic look, these pants utilize Nike's advanced thermal technology to trap body heat without adding restrictive bulk. Whether you're warming up on a chilly morning or heading to a late-night gym session, the supersoft fleece interior ensures you stay comfortable from the first stretch to the final rep.