Warmest, breathable, beanie I can find.
I am giving this product 3 stars because it is "Adequate for the job".
This is the warmest, breathable, highest quality beanie that I can find anywhere and I've tried on a LOT of beanies. The wool is not itchy, I do understand why others think it is itchy but this hat is not old school itchy wool, it's just not the super super light wool either, which is a plus in my book because it is so durable. It does not feel plush and soft, but it is certainly not itchy. It does not bother me at all, but I won't be mistaking it for silk either.
The hat does is extremely well thought out. The top of the hat is not lined with fleece and does and superb job of breathing. The fit is tight so your ears stay close to your head and warm. There is a band of fleece that aids in keeping your ears warm. This hat is comfortable to around 15F, and it will keep your ears from getting frostbite if the temperatures fall lower than that.
This beanie also does not shed fibers onto your head like other beanies do. When you take it off you do not need to worry about what the beanie left behind on your head and in your hair.
I would give this product 5 raving stars and purchase 5 hats to make sure that I always have one even after it has stopped being produced ..... except that I never want to wear the thing. I am not a walking billboard, the logo on this thing is ridiculous. If you buy this hat you will literally have the Arcteryx logo stamped on your forehead. Some people think that's cool, I don't.
Although I would otherwise pay $50 for this beanie due to its construction functionality and quality, I cannot bring myself to wear the thing because I feel like a fool with a gigantic logo stamped on my forehead.