
I have used this product all day for twelve days sometimes in -10 degrees. It's cozy, keeps you warm, comes in 2 sizes, and still looks new after 3 machine washes. I have used it for hundreds of miles under a helmet while snowmobiling. Although it might be nicer if it was a bit thinner, I believe it's thickness has to do with the fact that it is made of polartec. And it's not super thick, I just have a huge head and am maxed out at 2x on my helmet. If your helmet has a bit of slack this would be a perfect fit. I would like to try the marmot but at that price and with North Face being as nice as it is, it's not worth the risk of getting it wrong. Hope this helps. Good luck!