Felted Satin Wool Bomber Jacket The Flap Jacket is a short bomber jacket with a zip front closure. The body is built of satin that is bonded to wool. The wool is felted through the satin into a quilted pattern. There is a stand away shoulder flap that adds a structural detail. The arms are made of black Wool Crepe. The Flap Jacket is crafted in England from fabrics woven in Italy.