Sauna Sweat Shapewear Leggings Pants Boxing Workout Suit Waist Trainer Shaper Sweatsuit Exercise Fitness Gym WomenHEAT TRAPPING: We use an advanced fabric composition of spandex, polyurethane & polyester to make our excellent thermal insulator. FASTER WEIGHT LOSS: By wearing our heat trapping sauna high waisted pants, you will experience a faster increase in body heat around your waist, thus stimulating natural sweating, become more efficient at burning calories, and undergo an accelerated metabolism, which will eventually lead to an increased weight loss by 40.