Not trying to bag on Peax, but ever since that guy on the cheap gear that works thread showed that they were selling the same headlamp for $80 that you could get for $25, just with their logo on it, I started to look at their products differently.
Stone Glacier on the other hand, I have those gaiters and they are the most functional that I’ve used. Easy to get on, easy to dial in the fit, and built to last. I’ve used them in all seasons and haven’t found a thing I didn’t like about them.
The others I tried were t&k (like the design, just were a little over-built and complicated to get the right fit for me), kuiu yukon (felt they were hard to get a good seal and didn’t like their bottom buckle), and the Sitka Thunderhead (really like these, will use them more for archery; I prefer a taller gaiter).