These sandals are extremely comfortable. I previously owned the adissage sandals, which I loved. These sandals are WAY more comfortable, but they are not to be used in water (as stated on the label). The sizes are different as well. I was a 10 with the old sandals, so I assumed that I would be a 10 in these...not the case. I had to send them back for a 9. No biggie, Amazon rocks! The bottoms are much more durable than the old adissage. These are a very hard foam, as opposed to the old, softer foam. These make great house slippers. Buy a good pair of Reef sandals for water use.