I order a size up because I wanted a looser fit to workout in. It’s not that loose if I order a medium it just would have been slightly fitted. But the design and quality of these shirts are really good I bought green red and white. White and green are my most worn though. They can be perfectly paired with a racer back sports bra. I don’t see any sweat stains on them either after I work out. If you want slightly more room size up or if you like a fitted look order your normal size. I’m 5’2” and curvy. I will go back and buy more of these it’s a closet essential.I am fairly well endowed up top, this tank probably would've been okay in a smaller size if the tatas were smaller. There wasn't much stretch to the fabric so it was pretty snug on top and a little loose around the waist. Would he fine for somebody a little more consistent in size from shoulders to waist. Still decent for the less than $4 I paid, just not a good fit for me.Not my favorite- it fit snug in the hip area. They aren’t very flattering on me. 5’3, 137lbs and they were snug in the tummy and hip area. They also hung long, so it would’ve been more flattering if the fabric could move instead of being snug. I’m curvy and petite, this shape wasn’t as flattering as I’d hoped. It’ll work Ok for home workouts.Runs pretty small so order upIt’s a little small for the expected size, but comfortable if you size up. I typically wear an XL for a fit that varies but is typically comfortably loose. These XXL tanks fit tightly as a smaller XL, but it is very comfortable regardlessSuper soft material! HOWEVER this runs super small. I’m usually always a medium across the board and based on other reviews I ordered a large. I like these types of tanks to be not as form fitting and I definitely could have gone with an XL and had it fit better. Tank seems to be tighter around the hips but it could be personal preference? I’m 5’8”, 145 pounds. (No idea why amazon uploaded the pics sideways, sorry!)The tank runs small and loses shape when stretched. It is also very long. Overall not very flattering.They’re are perfectly fitted! I have some in large so they can be a little float and some in medium to be more fitted. I do wish they were a little more stretchy and thicker material. For the price though, this tank is more than worth it.