Vintage Retro Thin Lizzy Tour Shirt 1981
Renegade Tour
Approx. 18" from pit to pit
Fit 34-36" Chest
Approx. 25" from shoulder to hem
With being a 40 year old T-shirt the labels have worn.
The label does say large but is obviously a lot smaller now 
The shirt has a washed out look and gone a nice charcoal / grey
 I think the size is probably Extra Small
Very good condition