Probably M Width: 55cm (underarm to underarm) Length: 71cm Sleeve Length: 90cm (to end of ribbing) 70s Vintage Champion Spark Plug Official Racing Jacket While not in pristine condition, both the outer and inner fabric are in a normal state for vintage clothing, without any major holes or damage. Please check the photos for the condition. The tag is faded and unreadable, but based on the size measurements, it's likely a size M. If you've been looking for this black and red model, don't miss out. Please understand that this is a vintage item manufactured approximately 50 years ago, and consider this before purchasing. Champion Racing Jacket Champion Racing Jacket Champion Spark Plug Champion Plug VINTAGE Racing Jacket Racing Blouson Spark Plug spark plug