Cockpit USA Men's B-3 Sheepskin Bomber JacketCockpit USA founder Jeff Clyman spent years rediscovering the long lost WWII leather finish for the B 3 before reviving it in the late 1980s restoring what had been missing from every B 3 reproduction since the war. The Cockpit USA B 3 Sheepskin Bomber Jacket is the result of that work: thick supple sheepskin with a nappa finished exterior, built to the same specification that kept Army Air Force bomber crews warm in unpressurized cabins at 25,000