Our product is specially designed for winter outing users.<br> I used to hate going out in the winter, and the feeling of giving me in winter was really bad. It was amazing until I found this hat.<br> It is very warm and feels like indoors. If you are also a winter out worker, this hat is definitely for you.<br> Q: Is it made of wool?<br> A: He is like wool, but it is warmer than wool. And it does not irritate the skin, no odor.<br> <br> <br> <br> Q: Is it available in several sizes for everyone?<br> A: We have men, women, children. But only women are on the shelves.<br> <br> <br> <br> Q: Does it wear well as a neck gaiter, with the hood down?<br> A: Yes. It is very comfortable to wear and very warm both hood on and off.<br> <br> <br> <br> Q: Will this fit over a ski helmet? I always wear a helmet when I ride, and I'm looking for it To cover the helmet and my neck comfortably.<br> A:I think it depends on the size of your head (no pun intended), probably would be too tight or Just barely fitting if it's like my fiancée type of head. For the price I would say give it a try. Is still useful with a normal hat under.<br>