I'm 5'4", 140 lbs with a chest of 34" so I went with a small and it's a super tight fit. It's my first time buying a shirt like this so I'm not sure.
138263
I like them to fit like a wetsuit which is pretty tight. You should have to "roll" it up off your back when you take it off. Sounds like you have the correct size.
766669
I'm 5'9" 180 Lbs I removed 4" from the bottom of the shirt because it hung down past my knees. I wear a large shirt and there is still room for exspansion. I have never worn this shirt for a few weeks but have worn it for a few hours several times. I can't imagine how much labor went into making this shirt.
928770
I have a medium and it fits great but I am 5-8 185 - large should fit ok for someone longer in build or at most XL - it should be tight to get the right fit from this type of shirt
2185127
I suggest a medium now to fit. A large would be lose now but if you continue to grow I would advise getting a large. Believe me because this shirt is of such good quality you should have it a long time.
1505493
If you're 6'11 it might be a bit small for you. Depending on how much you weight. I wear an XL shirt and am about 5'11 190 lbs and it fits me a little tight. If you're fairly skinny it might fit in the arms, but the length will be a little short.
94270
I am 5'6" and 145 lbs, with a 37.5" chest. I wear a small, and everything fits perfectly - including the sleeves. My friend got the same one in medium. He is 5'11" and 180 lbs with a 40" chest.
54281
I am 6'4 and 230lbs. I wear the L and it is really tight as it is supposed to be. those are compression shirts!
2126660
Im 5'8" about 190 44" chest. The xl fits snug, but comfortable. I think a large might be your best bet. If you are looking for a looser more roomy fit the xl would suit your needs
336683
I'm 5ft9in and weight 190 lbs and large fits fine for me. XL should do it. It may be long, but it's such a nice shirt, that shouldn't matter. Buy just one and see. I now have five and wear them almost every day! My wife gets credit for the answer, but it's really mine.
354309
I'm about that size on the top and 30-inch waist and I wear a medium. If you like it to fit tightly, purchase a small. If you're going to layer it with a shirt underneath, a medium.
127775
You should be a SMALL... This is UA's MEN'S TOPS SIZE CHART - Chest (inches) SM = 34-36, MD = 38-40, LG = 42-44, XL = 46-48, & XXL = 50-52
2126659
5'7'' 165lb 40 chest, 31 waist. Picked up the medium and its pretty tight. Thinking about switching to large.
487434
follow this link for the size chart. http://www.intelliskin.net/shop/shop-intelliskin/shop-men-s/essential-tee-posture-shirt-for-men.html.I am 5'11" 158# with a 33" chest and the small fits me fine. I would suggest the medium based on your chest size.
1512808
I bought this for my grandson, who is 12 and about 110 lbs and about 5'4'' and it fit fine. I tried it on myself, 5'3'' and 118lbs and it fit me fine. Sounds like to me, the small may fit you. If any doubt, order the medium only for length. Good luck, I think you will be pleased.
1443901
I'm 5'11" 170 lbs and got the large. I have it tightened pretty small. Depending on your actual chest measurement-I would stick with a med. They are really popular right now and all sizes may not be available. Totally worth the wait or check out their homepage.
271928
Well the small is pretty tight, there is a lot of padding, and I am a marathon runner so I am pretty small in the chest. Haaa
632904
With all UA, depending on if you are okay with having clothing tight to your body, loose, or just having some give. I bought mine with having some give but it fits snug. I have a 38" chest and very broad shoulders. I fit snug up top and some give at the bottom with a 34" waste. I bought an XL. Just going by your waste you may want to try a Large. But that may confine you up top. The tops do have a no slip strip at the bottom of the shirt so should you tuck it in, it stays in place. I hope I helped in your decision, and answered any questions. Take care.