Real McCoys used to do a nice repro M-444 but discontinued it a while back. US Authentic does a reasonably accurate interpretation of the M-444 (as did Willis and Geiger in the 1980's) though nowhere near an exact replica of any known wartime maker.
Personally I like the Navy's M-444/445 much better then any of the USAAF sheepskin jackets.
Personally I like the Navy's M-444/445 much better then any of the USAAF sheepskin jackets.