So I had bought something simple for 13 euros with silicone underneath. Ok, they were comfortable but they slipped a lot in the sea on the rocks. I searched a lot and found these and I am currently very satisfied. They are suitable for everything. I wear them from home, drive, and go for a swim. You don't need dangerous flip-flops to leave, for example, from home and slip on the stairs that will have water or anywhere with water. With these, you don't have to worry because they are specifically non-slip since they are for water. Yes, they are comfortable. Easy to wear. I would like them to be a little more elastic at the top where you wear them. The fastening is simple. The foot breathes fine. I didn't take them off at all for many hours. Nice and good quality. They dry relatively quickly. But you have to take them off to dry completely. They don't slip. One minor and reasonable thing I consider is that they trap small stones in the holes and inside and on the bottom. It's like dirtying a sports shoe. So they need to be washed with water to always clean them inside. Otherwise, you transfer everything to the house. I would buy them again.