Lightweight Slimming Vest designed to heat up your core temperature resulting in accelerating inches off your waistline and back! Moderate to high compression, no boning, flexible. The product is very stretchy order your shirt size or follow size chart for proper sizing. Comes in regular & long length. Longs are 2 inch longer. Long lengths are for heights 5'6" & above or those having lower belly pudge that typically hangs low.