Nothing has kept me as warm as using face masks/neck gators. Pull them up and over your head and up to your eyes. Running at 60 plus in 25 degrees, and didn't feel it on my face at all. I also have learned, finally, in 55 years, lots of layers, thermal neoprene long johns, BPS 100mph rain bibs, hoodie, neoprene gloves, stocking cap over hoodie. Not all that heavy and as a fat old diabetic with bad blood flow, I HATE being cold nowadays!