Navy long-sleeved undershirt, size SM, comfortable to wear. - Brand: Under Armour - Size: SM - Color: Navy - Style: Long sleeve Thank you for viewing. I wore it for one season, but I'm selling it because it no longer fits. The back has a mesh-like material, although it may be difficult to see in the fourth photo. There are marks where the name was written. There are no scratches, so I think it can still be worn.