No doubt, it's my polypropylene head/neck gaiter. Been using them for many yrs. Like it so much I have 3 of the same. I wear them too, for non-cycling activities in cold weather. Great b/c it's thin and can be shaped/formed to be a hat (that covers the ears), a balaclava, or just a neck gaiter. I use it as a hat most of the time. Will wear it down to 25 degrees F; below 25 F, I'll wear my true polypropylene balaclava with a thin skull cap under that.