I bought this t-shirt for my 12 year old son to wear under his basketball jersey. I couldn't find this color in stores, so I went to (Revain!) for hard-to-find products. I was expecting it to look like an Under Armor t-shirt, but it doesn't. It fits him so the sizing is what I would expect from his regular t-shirt sizing, but I was expecting a tighter fit under his t-shirt. I was a little disappointed, but I would buy it again just not for this purpose. I would have known about his appearance.