This Wind Gap Knitwear undershirt is an original piece of militaria from the United States. It is a cold weather polypropylene undershirt in size small that has never been modified. The item was manufactured after 2001 and is in mint condition. This undershirt is perfect for collectors of militaria or those who appreciate high-quality, original items. It can also be used for practical purposes, such as cold weather activities or as part of a military uniform. Regardless of its use, this undershirt is a valuable addition to any collection.