Speaking as someone who has been an REI member for many decades (40 years) REI is a co-op and has huge buying power.
And there is a chronic shortage of reusable facemasks. For ex, ordered an Outdoor Research facemask from REI a month ago - and the order was cancelled two days ago for lack of supply.
If REI can create clones of popular products (which it does all the time), why can't REI apply its market clout to creating an REI-branded facemark that really works and also looks cool?
What REI member wouldn't buy one... seems like a no-brainer to me... so REI, C'mon... get your act together and make a face mask we would all love to wear...