Very good product. Will be buying again, was definitely a happy customer. Fits Perfectly fine & is very COMFORTABLE!Size run smallVery comfortable and excellent quality! Helps accentuate curves looks great under clothing and great for exercise!So I ordered it in a bigger sizeXSMALL is very small so be prepared for that. If you’re tiny it definitely will work.I am more of a small. I didn’t measure my WAIST and I’m usually a size zero in jeans. So small hips but I have a little belly! So if you have a totally flat stomach it will work!!!:)I ordered 4 different colors. All 4 trainers were sent separately. The first trainer arrived with packaging opened. I ordered a Large, I received a Medium in Purple, and a 3X in the Red. The Blue one arrived in the correct size. The yellow did not arrive at all (Amazon delivery issue). Overall I read the reviews about sizing. This trainer fits tight and loosen over time. I have owned this exact trainer from a company that cost $45 a trainer. I love the colors, love the quality and the fit (I have been wearing trainers to work out for years). It is an adjustment. If you cannot comfortably breathe, it’s too tight.I’m in love with this waist trainer, best quality and shape. The fabric is super comfy and it’s easy to use it bends easy while you move. Fits a little small, I’m normally a size small in other waist trainers and I can go downs the hooks but in this one I fit in the first row only which I like since it’s supposed to go down with time. But if you are not sure go up a size since you can use the other hooks. It’s really like a Colombian waist trainer the quality is the same and the form too. Thank you!This shaper is good quality, it’s pretty thick so it flattens you’re stomach and highlights your curves, light rubber smell that goes away after some use. It’s a good replacement for my previous waist trainer once it was too big. I got a xl and I’m 5’6 about 160Ibs, works perfect.Excellent customer service, there was a small issue with the one I got and they replaced it immediately with priority shipping.Good quality waist trainer, extremely durable.I also received excellent customer service concerning my shipment /timeline concerns.