Made for some of the most extreme temperatures, the N-2B parka was primarily designed for US pilots stationed in fidget areas such as Alaska. 

The exterior is water-resistant, and the hood is massive! When fully closed, your face is basically hidden inside a warm and cozy hole. 
The parka features two waist pockets that act as through pockets as well, and a sleeve pocket.
 
Only one is available in a size Large. 

The parka looks to be in great shape, but please expect some signs of wear as this has been issued at some point.