I love these flip flops. I have them in 2 colors. I bought them to replace the last pair of Cudas that I bought from Overstocks which I had completely worn out. I see previous reviews which say they are slippery and it is true they can be a little slippery on high shine hard wood floors but generally I find them to be okay. Also, the two pair that I bought do seem to be slightly different in size. The ivory pair that I received seem about a half size smaller than the blue pair. It is no big deal because once you wear them a little, they form to your feet and then they fit fine. If in doubt, order a half size larger.
They look nice and the quality is okay, but beware......when you walk on a smooth surface, they are very slippery. I almost fell on a hardwood floor and you can slide over a slick concrete floor too. Not an ideal shoe unless you are staying on a rough surface. I had to glue masking tape on the bottoms so I would not fall down.