I'm a 6'1" (185 cm) man with stupidly small size 3 US (EU 34) feet. I've never met another adult with smaller feet than me. It makes me look like a reverse hobbit.

As a baby I was born with a pituitary issue which meant my hands and feet were abnormally small. They never grew that large at all. I can run and walk fine and they're not deformed or anything, just tiny. I might have some hilarious world record for smallest hands and feet on a fully grown adult! Luckily my condition hasn't affected any other part of my body.