I wear them daily and for many hours. Very comfortable and they mold to the shape of the foot. They can be adjusted according to each foot.
In sports shoes, I wear size 39, but I got these in size 40. The size 39 was borderline, so I would recommend sizing up.

I bought them for hiking on a trip. Definitely need to get a size bigger than what you wear because they are narrow in their form. Very comfortable and durable.

Super comfortable, they fit perfectly on the foot, you walk and you don't even realize you're wearing them! Be careful to get a size larger than what you usually wear!

Good construction, very good support in the arch of the foot, comfortable, you can walk and run BUT if it gets wet, the sole slips. Not the foot, the sole. They attracted me with their appearance BUT if you wear them for a long time, no matter how nice they look, your feet start to smell. I have had them for two months and I use them daily, they are very comfortable, my feet don't hurt and I even wear them to the beach, everywhere. They hold up well but the material makes your feet sweat and because of the plastic, they smell! I usually wear size 36 or 37 in sports shoes and the 37 fit perfectly.

It is super comfortable, for long walks it feels like wearing running shoes. Buy one size larger, it runs small!