They are usually furnished with a removable liner.
USAF Extreme Cold Weather Trousers, F-1B [Genuine USAF Issue]
These pants were made in the 1970s constructed of 80% Nylon and 20% cotton outer shell, and 100% polyester lining. They feature a reinforced seat and
USAF Type F-1B Extreme Cold Weather Pants Trousers & Suspenders Size 36
Usgi f-1b extreme cold - Gem
USAF Extreme Cold Weather Insulated Trousers Type F-1B Size 30 Made in U.S.A.
F1-B Extreme Cold Weather Military Super Warm GI Snow Pants Trousers 30, 34
Nylon Uniform & Work Coveralls & Jumpsuits for sale
USAF NAVY Type F-1B Extreme Cold Weather Pants Trousers SZ 34
Usaf extreme cold weather - Gem
Usaf f-1b extreme cold - Gem
USAF Extreme Cold Weather Type F-1B Snow Pants
Usaf F1b Pants
Usgi f-1b extreme cold - Gem
USAF Extreme Cold Weather Type F-1B Snow Pants
F-1B Air Force Extreme Cold Weather Pants ECWCS
Nylon Uniform & Work Coveralls & Jumpsuits for sale