Seirus Women's Combo Clava

I picked this up when I was working outside on Keystone Mountain in Colorado. Whenever the temp dropped below 0, I would use this instead of a regular hat. I also used it on a variety of bike and backcountry adventures, since it is possible the best solution I've found for fighting wind on cold snowy days.

It fits great under helmets, which is why I give it 5 stars. As a standalone piece of gear, its a little thin and frankly, makes you look like a ninja. The only con is that the mouth fleece panel gets a little wet from exhalation, but the ventilation is much better than any other solution I've found. When temps get to -10 and below, that part would freeze, making it very stiff if I pulled it down to take a sip from my camelbak.

Tried on every balaclava and mask available at my local REI, and this one won out by a long shot. First impressions: Not too tight on my neck, and my lips/mouth aren't in contact with the material (a huge disadvantage to traditional balaclavas in my opinion).

Primary use for me is snowboarding - I wear this under my helmet with my jacket zipped up and don't need to wear a hat or scarf. The plus side of this is that it stays put, it protects my skin from the cold and wind, and I can breathe through it. I don't need to constantly adjust a scarf, fix a hat, or pull a wet, frozen mask away from my mouth. On its own, it looks a little ridiculous, but under a helmet and goggles it looks pretty impressive.

I have this clava, but only in blaze hunter orange. I went with the orange incase I have to make a bright signal.
I used this everytime its cold here in Colorado Springs. Makes great head wear for that. I also use it over my head and mouth when I am camping in the cold weather. Keeps my head warm all night!
What I like most is that you can wear it just as a scarf, but if you start breathing cold air, pull it right back over your mouth.

I wear this on my snow machine or four wheeler (depending on the season and conditions). Most of my riding is done back and forth to our cabin or hauling material around the cabin for various projects and not purely recreational. I've worn this on the snow machine as cold as -30F. Of course you still need goggles and a very warm hat - but if you've ridden a snow machine you know that face protection is a must.

The neofleece face panel protects from the wind and elements, while the rest of my head luxuriates in normal stretchy fleece. Even with the neofleece face panel, this was as comfortable as any balaclava I've ever worn. My only beef is that the non-neofleece part could be a thicker fleece, but then it wouldn't fit under a helmet. In cold winds you'll want to wear a hat and some neck protection to back up the normal fleece.

I use this for work and it keeps me very comfortable and warm on the coldest days. I wear glasses and they fog-up when wearing this balaclava.