I bought these in the Sierra color and I have been wearing them nonstop since I got them. They are very comfortable for flip flops and I like the wide straps. I wear a size 6 in most shoes (except sneakers) and I ordered a small in these. They fit perfectly, though I believe the small size says it goes up to 6 1/2. Not sure if that would be true as they are an exact fit on me. I would recommend trying them on just to make sure before buying or ordering.
They fit! They fit! YAY! They fit! It's been years since I could find a pair of cool flip flops that stay on my feet. I ordered 10 different pair of flip flops and returned 9. People with narrow feet will understand. Thank you Rainbow Sandals and thank you Nordstrom, you're my hero.