I bought these to use on our cruise excursions. I wore them a few times when we wanted to snorkel and go to the reef beach. I was very glad I had them - it would be harder to walk in flip flops and barefoot would hurt! The insole came out somewhere on first use as others have commented but it didn't seem to matter in terms of comfort or durability. I plan to use them at the beach this summer when I run on hot sand!