This quilted parka liner makes a very warm insulating layer. It's got buttons on both sides and is meant to fit into your Czech Army parka—but don't let that stop you from wearing this under any parka you have. With a little love, you could also easily remove buttons on one side and sew in some holes to make a separate complete jacket out of this liner. It comes in great used condition and the material is both sturdy and warm. It also features small slits under the pits for ventilation. Some would consider that a must-have feature.