This is a US military genuine M-51 Field Jacket Pile Liner, 50s vintage, junk item. It has repairs for tears and existing tears. There is no tag. Size is unknown. I purchased it as a genuine item. I believe it is a rare item. Please understand that the fabric is old. As this is a used item, please refrain from purchasing if you are sensitive. Thank you for looking. No claims, no returns, please. Please refer to the photos. Approximate measurements: Shoulder width: 50cm, Length: 71cm, Sleeve length: 70cm, Body width: 56cm I believe it is equivalent to a size L.