Increase your core body temperature Tighten breasts muscles, Improve your overall well-being. Maximize fitness routines. Increase your core body temperature. The Hot Shapers is made of high-tech NEOTEX fibers that increase body heat while in contact with the skin. It is perfect for exercise, for normal daily routines, or for any physical activity. It’s unique fibers and material produce higher compression resulting in more sweating.The Hot Shapers inner layers increase body temperature and sweat while its outer layer is super absorbent, so that you sweat on the inside and stay dry on the outside.