(Run big recommend a size down) Waist trimmer belt constructed by neoprene material which can enhance sweat by retaining body heat while you are training give you a push to elevate workout and train you to drop some extra fat on waist promote body weight loss.Weight loss waist cincher boost body temperature to ramp up perspiration accelerate calories burning and shed the harmful fat along with sweat while workout shrink your waistline flatten stomach and build muscle to improve body image.Waist trainer corset with 5 flexible bones provides extra brace support for abdominal muscles and lower back help release pressure on waist and enhance muscle mobility without bothering firm structure tighten your abdomen to achieve toning effect