Winter Aviation Sweater - NavyThe Winter Aviation Sweater is modeled after the clinically named "Vest, Flying Winter, Type C 2" an interesting piece of historical knitwear. Somewhere between a jacket and a sweater, this garment was originally designed as a layering piece for pilots in the early 1930s. Just the right size and shape to wear under a leather flight jacket like the A 2 or G 1 (though the G 1 would come much later), the C 2 is a fully knit "lining" that can be worn