Early on in the pandemic I bought some cotton masks from Thompson Tee [
https://thompsontee.com/face-masks ]. I had previously been a customer of the company, buying their undershirts, so was comfortable buying from them amid the rash of fly by night companies and such in those early crazy days.
I LOVE their masks nave since bought more. Double layer cotton. They do have ear loops but they are among the most comfortable of any mask I have -- a soft stretchy fabric that I don't quite know how to describe, but I find it doesn't bother my ears, which is saying a lot. My sister, Mom and I have all worn these masks and they are the favourites for all of us for a reusable simple fabric mask. They hold their shape, can be washed and dried on HOT cycles, and the white ones can be bleached. I find they keep their shape, keep their size [despite lots of hot cycles], and *stay in place*. While they don't have a nose adjuster thingie, they do pretty good at conforming, and at least for the three of our's faces they don't keep slowly sliding down off the nose like some other masks I have.