Material's Quality Guaranteed- There arevery low quality belts also onMarkets_x000D_ 100% Brand new and high quality_x000D_ Good heat resistance, maintain body temperature during exercise_x000D_ Allows the body to consume more calories to achieve weight loss_x000D_ Light Weight & Invisible Under Your Clothes_x000D_ It can be worn under or over your clothing._x000D_ Fit for sports, running ,yoga ,fitness etc