10X…

… no this is not the size of Mister FCC's underwears…10X is one the most popular brand of Rifle jackets, he collects… And to the question "Does he wears those patches, leather shoulder and elbow, belted back, leather trim, no collar gabardine jackets when he goes to the supermarket… I can confim… YES HE DOES !!!!!!!!

Back of the deadstock 40's model found in its original box

WWII HBT US ARMY model size S (this model uses to oversize)

Fort Bragg 60's model

Great original patches…