Here is a vintage (year 2000) Harley Davidson Orange Medium T-Shirt "Hell on Wheels" from a Minnesota Dealer.
It measures 20 inches across the chest measured under the arms and from the back of the neck band to the bottom hem is 29 inches making it a size MEDIUM (even though the HD tag says it is a large, it would be too tight.. in today's world it is a MEDIUM! A few very faint stains and no holes. This T-Shirt is 100% cotton. This is the "orange is the new black" trend from nearly 15 years ago!