I used to barefoot run back in the 1970's taking karate students running around Greenwich park in London. These protect you from all that garbage you find and of course Dog Poo!
These appealed to me more than those that have individual sections for each toe. I bought them for Karate when training outside on concrete and grass. Now I wear them casually around the garden and out to the shops. People do give your feet some strange looks! The only issue was that on one of the shoes the ands were not properly attached so they had to replace that pair. I have a pair of the Terras just received last week and one of the bands on those is not properly attached for about 2 inches. They are going to have to replace those too.

The other complaint is the shortage in various sizes. I take a 12.