PROMOTES WEIGHT LOSS: During exercise, wrap your entire mid-section with the sweat waist trimmer band, by increasing body temperature burning fat, reduces edema, strengthen, tighten and protect your muscle,shape the curve you want.ENHANCE FITNESS PERFORMANCE: Concave inner layer design, increase friction with skin accelerate sweating, decreases loss of energy from excessive motion & vibration during exercise. The trimmer's grid inner lining will not only repel moisture absorption but also limit slipping and bunching during your waist workout.LUMBAR & BACK SUPPORT: Waist belt provides compression to support your back and lumbar help prevent injury, increased blood flow, muscle stability and rapid recovery.ADJUSTABLE AND COMFORTABLE LATEX-FREE NEOPRENE FABRIC: The waist trimmer made with the premium latex-free neoprene, good stretch and Velcro closure design can be adjusted perfect to fit your shape & size. And it is so comfortable you can wear it under any workout apparel.