We tried all the others and discovered what is really important in an exercise belt: – Designed to work from the smallest waist and to stretch to a 46″ waist – wide enough to cover the stomach area and stay put during exercise – rounded, double stitched edges for comfort and durability – thick enough to produce the heat needed to get results and hold it’s shape – blend of quality neoprene, nylon & polyester to form a firm bond with the Velcro fastening – made to last and easy to wash and keep clean how to wear 10xSWEAT waist trimmer should only be worn during exercise for no more than 2-3 hrs. at a time. Before you begin exercising, adjust your waist trimmer to desired position and wrap it comfortably around your abdomen. The waist trimmer can be worn under or over your clothing. How to wash before initial use: Wipe down a waist trimmer with a damp cloth. Use a clean cloth to dry off waist trimmer or air-dry overnight. After exercise: Lather a damp cloth with soap and run down inside of waist trimmer several times. Then, rinse the cloth and wipe down again until there are soapy streaks left. Use a clean cloth to dry or air-dry overnight. Allergy notice some individuals may be sensitive to neoprene or neoprene blend rubber. If a rash develops discontinue use. Before starting any exercise routine please consult a physician. Always stay monitor your body why exercising and remember to stay hydrated when you put on the 10xSWEAT tummy trimmer you will instantly feel a difference in posture and support. This effect will last throughout your entire workout, providing the best quality heat to burn fat, move cellulite and expel toxins. We know because we’ve tried it .