Now that I have worn this long sleeve T-shirt a lot I wanted to update my review to 5 stars. I have found it is my go to shirt. It is absolutely the most comfortable T-shirt I have. It is not binding but not slouchy. The material is so soft against my sensitive skin. I’m 64, 5’8, 143-146lbs. The Large is perfect for me but if your wanting it a little more form fitting then you might need a Medium but I wouldn’t go any smaller because I have a smaller frame. I wish they would add a few more colors like a little darker gray, darker orange and a grayish purple. I really hope you love this T-Shirt as much as me.