Starting from the lining of the commonly used field jacket, we gave to this item an aviator jacket shape by creating knitted collar, cuffs and bottom and adding zipper and pockets.
This is the lining of the M65 eld jacket.
On the inside of the jacket there are buttons for attaching the insulating liner in cold weather. The liner is speci ed by MIL-L-43536. It has open underarms, buttonholes at the neck and front edges, and buttonhole tabs at the sleeve bottoms for attaching the liner to
the jacket. The liner is quilted and made of polyester batting covered with 3 plies of ripstop nylon cloth. It was redesigned (i.e. buttons were added to its front)
to make it capable of being worn independently of the eld jacket.