Vintage 80s PETERBILT CLASS ACT BIG RIG SEMI TRACTOR TRAILER TRUCK t-shirt L. Measurements are taken with the item lying flat, and are in inches. If the item is long sleeve, there is a third measurement, from pit to cuff in inches. All sizes are based on modern adult sizes, and are done by the measurements not by the tag size. SSI, large, made in USA, 50/50.Fits like a modern unisex adult large. Small holes throughout, see pics. If you order 3 items or more from the U. International Buyers - Please Note. We do not mark merchandise values below value or mark items as "gifts" - US and International government regulations prohibit such behavior. If you have recently moved or made any changes to your address, please update the correct address BEFORE paying.