TOP 15 BEST Nintendo Switch Action RPG Games You Should Play! Action M1951 Parka Liner, Used, Medium. Here we have a great M1951 wool parka liner sized medium. This is a genuine issued example (not a reproduction) with has some small repairs and sign of use bit is overall in great useable condition. Due to the oversized nature of the parka shells, even when fitted to the appropriately sized outer, this will still be generously sized if being worn over a thin layer like a sweatshirt. Please note, markings were applied by the US government not us! Worldwide shipping available on nearly all our products.