A medium jacket crafted in an emerized nylon with a field use finish, featuring full zip fastening, secure front pockets, adjustable cuffs and a C.P. Company Lens detail on the sleeve pocket. Flatt Nylon is an emerized nylon and emerizing is the process of passing a fabric through gigantic rollers of emery paper. The resulting fabric is softer and has a matte finish, similar to any fabric that has been worn and washed many times.