Answer
Oct 24, 2023 - 01:42 PM
The GSS Onyx winter bomber jackets are probably the warmest jackets we sell. They have the standard polyfill insulation that is suitable for most conditions in the U.S. and when it gets super cold you can zip in the additional fleece liner (I personally tested this in -30F temperatures with a -62F wind chill). The outer shell is 100% waterproof so you will not get wet and cold, and it's treated with a Teflon product to repel oil and dirt.
