My hubs, master sewer (Seamster? Tailor? Fabric sorcerer) that he is has been making me masks for work because they're required and they provide us with TERRIBLE paper masks that like to slip up and touch my eyeballs. Double sewn five hundred thread count cotton because we raided pillowcases. Mine so far are just black or maroon but we have some fabric on order. Rainbow stripes for Pride, and some neat gothy stuff with little eyes all over it
Here's some he made for my family before the ties got added in!
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I just wash mine in unscented dish soap by hand, rinse then hang up to dry.