Navy Under Armour baseball undershirt, size L. - Brand: Under Armour - Size: L - Use: Baseball - Color: Navy Thank you for viewing. This is an Under Armour baseball undershirt. I wore it when I played baseball, but I'm selling it now because I don't wear it anymore. I also wore it when I was training, and as you can see in the photos, the fabric is thin in places on the back. The logo on the front is also slightly worn. It can still be worn, but it is a used item, so please understand this before purchasing. It has been stored at home after washing.