The mediums in this brand are very large. I bought medium and small in 2 different shirt styles by this brand. The small is very oversized. I am 5 ft 4 inches and a 39 inch bust, I'm a 36DD and 140 lbs. The small is big on me, almost too big, but when you tuck it into the front of your jeans it looks good. I bought 4 different colors. I am keeping them because the price is great ($10 each) and like one other reviewer mentioned, I really love how the shirt hides that weird fat pocket near the armpit. These tank tops aren't tight around the arm pit but still do a great job of hiding any weird embarrassing bulge (seriously I never wear tank tops because I'm very self conscious about it). If you are anywhere close to my size I would order the small. I like the waffle fabric and how light it feels. It's a great summer shirt.I bought this cause the model looks great in it. It’s kind of a boxy tank not sexy at all but I do love it for it’s relaxed comfortable fit. Nobody has ever complimented me on it but I feel good in it.I love the garment but it runs large and was too big and loose on me.Its very hard to find a tank top that fits properly. This one needed no adjustments, looks good, hangs nicely, feels great. Color and fit as shown. Hope to buy more.I bought this tank in the wine color and really loved it. The flowy shape (not clingy), the feel of the fabric, and the color were all perfect. I loved it so much that I decided to order the dark gray color. It has the same nice flowy shape and feel, but the color is unfortunately not depicted accurately. What I received is a light-medium gray, but definitely not dark. I have included a photo of this shirt fabric with two other shirts for comparison. The shirt on the left is black, the middle one is this waffle tank, and the shirt on the right is what I would call a medium-dark gray color. Note the contrast. Not only is this waffle tank lighter than advertised, it also has a slight blue tint. It's subtle, but just enough that it doesn't seem to match well with anything I planned to wear it with. I'm returning it.I decided to order another one of these tanks in the black color and it is great. I definitely recommend this top.This shirt looks just like the pictures but it isn’t as cute on me as I had hoped. The fabric is thin and light but it’s not sheer. There is plenty of stretch in the fabric and the size is what I expected. I may try another pattern.Love the fit and color. Seeing how it handles a wash or two… considering buying more.Love this tank top and ordered it it in multiple colors. I'm getting frighteningly close to 70 yrs old so everything bodywise has moved south and this tank hides all of the flaws except the upper arms while following the hourglass shape that I still retain. For a sleeveless top, it's the closest to flattering my shape while hiding all of the flaws that I have been able to find. It's light and breathable with the right amount of stretch. I love the waffle knit and it can be dressed up or down, very smart looking. I haven't worn it yet except to try it on so I don't know how well it wears or washes. The length on me is upper thigh. For reference, I'm 5'3", 147lbs, 34H bust and usually wear a M top, occasionally a L. The M fits perfectly.