Any complaints about this are silly. Best mask I’ve tried, and I’m picky! Yes, some assembly required on the sincher thingies, but just get a skilly coat hanger or something to push straps through the holes is 5 minutes well spent on awesome tightening mechanism.Fabric is indeed interesting, almost a denim, but I think ideal for a mask as it retains form, allowing a pocket of air in front of your mouth/nose making it very easy to breathe. If concerned about it going thru the wash.hand wash it wiSee full review