Birkenstock round toe silver lace-up flats from Japan

Super cute silver Birkenstocks in a lace-up oxford/ballet flat style! Anatomically shaped cork-latex footbed, just like in Birkenstock sandals. Great condition, only worn a handful of times before I realized they’re not really me! Size EU 39 (for reference I’m about an 8.5 US). I was told by the sales person in Tokyo that these were made specifically for the Japanese market. I haven’t been able to confirm that but I also haven’t seen them anywhere else! Comes from a smoke-free but not cat-free home.