I usually fit a large pretty snug. In this particular brand id wear a ...
586104
Shirts come in sizes VERY large. I usually fit a large pretty snug. In this particular brand id wear a medium, maybe even a small...
4813749
It's smaller than I expected. I wear a medium in pretty much everything so I bought medium. A large may have been too big, but this one is a little snugger than I'd like. A foundation garment may help. But it is beautiful.
2495516
I've owned and loved this brand for years. However this style is much lighter and snug fitting than I expected. I'm sure if I wore them a while it would work out, but I'm returning them
3874378
After trying other brands that were too small, I tried these in the size larger than I normally wear and found they fit the same as my old ones do in the smaller size.  I think the sizes have changed.  ( It couldn't be that I am expanding could it?)
2079553
I normally wear 10.5 and for the most brands it fits me just right, with this brand 10.5 fits me rather large, I am thinking I should have ordered them 10 or even 9.5 . The shoes themselves look and feel good
3463008
It is a bit snug.  Every brand seems to fit differently.  Overall, I like it better than most that I have purchased recently.
2929169
On my relatively lean frame, these are pretty baggy in the front unless you wear them awkwardly high on your waist. Other inexpensive brands (Hanes, Champion/C9) fit me better.
1668832
strange how same sizes run a bit different. a favorite brand though.
3783451
Fits smaller than size indicates. If I buy brand again, I would have to buy a larger size.
1867306
The two items I have purchased run large which is flattering, but I have to remember that though I usually wear a medium and periodically a large, a small in this line would fit me perfectly.
2392454
Band is very snug. I'm usually between 32GG-34G depending on the bra. Never tried this brand before and the red bra had a great price so I ordered it. I can close it but it's pretty tight. Hoping to lose weight soon and it should fit better once I do so.
2083789
Certainly Under Armour has built a very robust and desirable brand, but I can't wear most of their stuff because it fits as tight as your skin. I wear a Large in every shirt style, and when I try on Under Armour "spandex style" knit shirts for athletic wear, I always try on Extra Large or larger to try to find one that does not feel like I just met a boa-constrictor, as I slip it on. And even those larger sizes are too dang tight. I guess that is OK if you are a "ripped" body builder who wants to show off every curve that has been built in the gym. I am 6' 2" and 190 pounds, and in very good shape, without a beer gut, so I guess I might classify myself as average build (not chunky and not skinny), but I don't like the looks of Under Armor on my body, because I don't have all of the ripped curves of a gym rat. I do hit the gym 3 times a week for 1.5 - 2 hour workouts....45 minutes cardio and 45 - 60 minutes on weights and machines. In that activity, I normally wear loose fitting t-shirts in summer and same in long sleeve for winter, without feeling a need to "show-off". I'm there only for the good it will do me.

NOW.....this animal is much different and I like it a LOT. The fabric is very soft to the touch, and it is extremely light weight on the body. Wicks moisture very well. And MOST importantly, it is flattering with a shaped fit, while leaving some breathing room. I don't feel like I am smothered in shrink wrap with this shirt. It is a fitted cut, but with plenty of give and a relaxed fit for working out. The color of course, as you can see, is a dark charcoal grey with a horizontal striation, tone on tone pattern.

Bottom line, is that I wish UA would produce more athletic gear with a looser fit like this one. Most of us are not Dwayne Johnson's, who look great in skin tight tops. I will be wearing this not only in the gym, but also as casual street wear. Looks great. Since most Under Armour athletic gear is so darned tight, I labeled this as "Somewhat Large", only because it is larger by expectations of the brand's norm. But as it relates to most "Large" size shirts, I would actually say it "Fits as expected".
3445398
I'm typically a medium but if you're going for the skin tight look like in the product picture you might want to try a small
2993124
I normally fit in a large swimsuit but this one was a bit snug. It looks blue in pictures but teal in person. I still really like it.
4797565
Fit too snug and skirt tight and other brands and even same brand I have same size that fit perfectly. Love the color so I can perhaps only wear the jacket '
1407644
I'd ordered a large and it was snug. So I ordered a XL and it was way to big. So, I guess I'm going to go back to the brand that I know has the right size that fits the way they should
3154331
I'm a size 30 waist at H&M and American Eagle, and these are definitely very snug. They're able to be buttoned and zipped, but at the risk of my breathing ability