These masks are comfy, and made from a material that doesn't make me feel itchy after extended use. I like that there's a flexible metal band in the top of the mask, resting on top of your nose, that helps make the mask more form-fitting to your face. It helps reduce my glasses fogging up when I breathe with the mask on. However, I don't like how short the elastic straps are -- the ones that go around your ears. They pull too tight on my ears and make them fly outward like I'm Adam Driver. Don't get me wrong, I don't mind sharing qualities with Adam Driver as a general rule, but when those qualities make my ears hurt that's where I draw the line.