I've had these ear warmers for several years now and they're still in perfect condition. I live in the Rocky Mountains and I use them alone, as a supplement to a hat, and for riding my bicycle.

They're small, so they fit in my pocket easily and i can wear under my bike helmet without having to do any helmet adjustments. They're great for blocking wind, and they're super toasty until about -14F, when I'm just cold anyway.

Minus 1 star because: though they fit my ears really well, they are still just a wee bit pinchy. But that's their design, and if they were less pinchy, they wouldn't stay in place. I can't say I know how to solve that one. But overall, I wouldn't let that deter you. I love them and would recommend them to anyone.