Due to a pituitary issue when I was younger I have maybe a bizarre world record of the smallest feet and hands on a fully grown man. My feet and hands are normal looking but very small. They were tiny as a baby and just never grew that big. Thought you all would find it interesting - I know it makes for good chat at parties!
Mostly online. Women's sizes are all too big so can only wear kid's sizes. The trick is finding something without Velcro and superheroes all over it (though I have a cool pair of Optimus Prime sandals just because I can). Converse and Vans are reliable.
As a 6’3” guy with size 16 feet, I have arrived at the same conclusion over here at the opposite end of the bell curve. Love my Converse and Vans.
And I thought my life was hard with size 14's.
Anything above 13 is really hard to find, I feel you.