Ill be frank about cobian flip flops. They are a great product. Very comfortable and reasonably durable. However, if you wear them daily... Be prepared to replace them every season. I wore mine everywhere and put some heavy miles on them at the beach. The straps don't stretch out (major pet peeve) and they conform to your foot. It took from June to sept to squish the sole padding all the way to the ground in the heel and ball of both feet. Which is disappointing. I've had two pairs and that's my only complaint. For casual wear you get a great product. They aren't as anatomical as a reef or sanuk. I have a cheaper pair of reef stuyaks ($20) beaters that have 3 seasons on them and there isn't even a dent in the sole. I use those for the sand and water.
 If you don't mind spending the $30 every season, they are worth It. I would buy them again but they would be more of a chill flip.