100% cotton. The tag is marked XL. The actual measurements when laid flat are:
Pit to pit: 21.75 inches
Top of collar to bottom hem in back: 29 inches
Keep in mind- the shirt may shrink, though, as it has never been washed.
Deadstock condition- never washed or worn. This was leftover inventory from a head shop in Minneapolis that closed in the 90’s. Somewhere along the line, though, it looks like the sleeve was pinched in something. There’s a small pinhole and some deep creases. It’s not too noticeable and I think the creases would fade out after a few washes.
Be sure to check my shop for hundreds of killer vintage tees. And stop back often- I have TONS of stuff not yet listed!