@warner I gave Mous a try for my SE and AirPods. Had a few drops since, including a couple of hefty ones, and the cases have done the job perfectly. As a result I feel even better about making these things last as long as possible; I enjoy being enthusiastic about tech without becoming obsessed with it.
@SimonWoods cases are definitely something you can feel good about investing in for sustainability.
Since the new O.P. 2s came out (I don’t think that much noise-cancellation is safe!), AirPods Pro case looking like a good buy. Is Aramid Fibre worth extra?