I have 10 used surplus German military long sleeve cotton jersey/undershirts with a mock turtle neck and quarter zip front. The size is 7/44 according to the tag. I think that converts to a US large?
They are all OD green, all cotton and heavier material than a T shirt. You won't win a fashion show with these but they are good for layering in cold weather for work, play or hunting. I'm selling them in lots of 5 each.
They have been washed and smell clean, no funky smells ,rips or tears in the material and all the zippers work.