I am in love with this mask. I have a half dozen from other folks that I've been using, but all of them have some sort of fit issue — ear loops too loose, mask too big, mask doesn't fit around my nose / small nose bridge.
This mask, with the drawstring behind-the-head design, solves all my problems. The mask sits securely on my nose with no gaps, under my chin, and doesn't tug on my ears / glasses. As an added bonus, my glasses don't fog up!
As someone with claustrophobia and anxiety, masks have been a pretty heavy source of mental discomfort as well. With the light (and incredibly soft) fabric that fits like a glove, those problems are nonexistent for me. I barely even notice I am wearing something on my face!
I don't know how to end reviews well, so let me just sum up by saying I intend to buy several more for myself AND my partner. It's perfect!