Scretchable & Comfortable Sauna Pants: Both sides of the pants have a pocket that comes with invisible zippers with reflective strips to keep your phone or other personal items safe while being fashionable. The design of the sweat pants is suitable for every body shape. The crotch section has been designed with breathable material,the sweat would not be soaked out and doesn't inhibit the movement during the workout, provide more comfort and breathable wearing experience.