Hermès summer sandals black flip flops size 42 approximately 10 US

In EUC, they don’t look like they’ve been worn, but have minimal handling scuffs (as seen in photos). See measurements- I wear a 10 US and they fit me, despite what looks like a 42 on the inside of the strap. It looks like the part between the toes is leather. I do have the certificate of authenticity to provide with purchase by Legitmark.