From the THETA meetup tonight.
Komei always has good gear, both high- and low-tech!
I’ve been using hard glasses cases from the Dollar Store. With a lens cloth wrapped around the lenses it fits nice and snug. I liked this solution so much I bought one for all three of my Thetas (I still have my older models). I still use the slip-on sleeve when I am actively shooting because it is more convenient, but I put them back in these cases when they go back in my camera bag: