WAIST TRIMMER BELT: Made of comfortable & adjustable & stretchy fabric, Flexible and durable, 100% Latex-Free Neoprene Stretchy Comfortable Finest Fabric, which means it is easy to clean, fits to your body, and will not pitch or irritate your skin. WAIST TRAINNER FOR WEIGHT LOSS: Our trimmer belt is made of Neoprene,polyester, which help the waist trimmer belt to be more flexible adding for the wearer. The slimming belt does not stab or jab like some other stomach belt do. The whole point of this waist trimmer is to wear the belt while exercising and help burn more fat in your stomach area by basically making you sweat as if you had sauna around your belly. DESIGN OF TRIMMER BELT: Wide enough to cover the stomach area and stay put during exercise. Thick enough to produce the heat and burn the fat, move the cellulite and expel toxins. Fully adjustable with double compression strapsto make people of many different sizes able to wear this trimmer belt easily.