I flew F-4s for 2 years at Elmendorf in the late 70s so this is probably only of historical interest now. We wore a padded winter flight suit (not Nomex and dating from the 50s, I suspect) and either a padded winter flight jacket (with normal collar) or a short parka (with real wolverine fur-edged hood!). There were also some half-length parkas but these were too bulky for the F-4. On our feet we wore either lace-up mukluks with felt liners or the oddest looking white rubber inflatable boots, which were too bulky to fit into the steps on the side of the aircraft so not many wore those. We also had those odd hats with ear flaps but most wore navy blue woollen balaclavas. I don't remember having any gloves other than the regular Nomex jobs. Overall the kit was very good and effective; flying stopped at -30 or -40 (can't quite remember) and it worked well down to that level.
The parkas were very smart and were viewed as V&A items, so when reached their sell-by dates they were bundled up and buried in a very deep hole on base. What a waste!