WW2 German Luftwaffe style sheepskin lined winter boots sz 11 1/2

The outer upper shafts of the boots are made in suede leather and the entire inner lining of the boots is lined in sheep fur,, the lower outer feet and lower shafts, ankles are made in " Gore Tex " or pleather,, fake leather- faux leather which is waterproof to rain and snow which is why I suppose it was made with the Gore Tex and not real leather.