Runs a full size small. I was using it as a layer and yet my normal size was uncomfortably tight. Great product as long as you order up a size.Very soft and comfortable. thicker than some of the tops I have ordered but great for fall weather and layering. I plan to order more in different colors. Also plan to order another black in a small to compare fit for future purchases. I sometimes like a tighter fitting under layer under some of my other fall sweaters. This is a perfect stand alone top.Light weight and comfyThe color was beautiful and correctly depicted. Fabric was soft, however fabric was not stretchy enough like another brand I have previously bought. Problem with sleeves being too tight.I wish more tops came with a neckline that's higher than this one has. It's okay, but I like a crew neck style that comes close to my neck.First of all, I’m wearing this as a top, not an undershirt. I’m 5’6-1/2, about 130 pounds, a 36AA. This top is loose, the way I like it. Easy to get on as I’m in a wheelchair and I don’t wear a bra, so form-fitting isn’t what I’m looking for.The color is vibrant but deep. Launders well. Hems at waist and sleeves don’t roll up, so absolutely no ironing. VERY satisfied with the quality. If you’re not dead set on buying 100% cotton, you’ll like this.I bought this and other colors. Love this color, but the collar band is all wrinkly after washing. None of the other colors have done this.I can't speak to the fit since I didn't try it on. I'm in search of pale yellow and this isn't it.I decided to try this shirt out as a shirt to layer under my t-shirts. One of the problems with these thinner shirts (and a lot of products sold on Amazon) is that they're made cheaply in China (sometimes fraudulently labeled as made in the U.S.) and so they tend to shrink and the sizes tend to be way off of U.S. sizes. I wasn't sure whether or not this would be the same but the price was good and I tried it.I was pleasantly surprised. I like my layering shirts to have a bit of room. I don't want them to be skin tight so I sized up to an XXL but if you like your layers to be tighter, it's probably how the shirt was designed (meaning true to size). I have washed it once and it doesn't seem to have shrunk. I'm going to try it in other colors.Right now, I have found it to be a well-made, comfortable shirt that I can wear under other tees.