Duluth Trading coolmax do-rag. Under that a silk Balaclava from Winter Silks. I use a waterproof helmet cover all winter to shed the wet and stop wind from infiltrating. You do have to make a winter adjustment on the chin straps. The inbetween times as Fall and Spring are the worst. It was 64*F here this AM and about 38 F this afternoon with wind and light rain. I carry lots of extra gear this time of year.