Best face mask in my collection at the moment, and I have tons. Very minimalist. No obnoxious logos. What I like most about it is the textile used. Rigid, maintains form, and breathable at the same time. It doesn’t have a filter sleeve, but the PM2.5 filter sits perfectly inside (or at least in the medium-sized mask). I just wish they make more of these, though. I feel like they will be ceasing manufacture since it’s heavily discounted. More please. Do a slightly larger version.