I ordered these sandals in a size 6, even though I am close to a 6 & 1/2 (these aren't available in half sizes).  They fit perfectly, but for something other than a sandal I think I would go up to a size 7 so my toes aren't crowded. These shoes kept my feet comfortable and cool while walking around Disneyland for over 12 hours.  They are waterproof & didn't get slippery when wet.  The buckle is actually covering a hook that holds the ankle strap, which makes these much quicker for getting on & off. These are cute sandals, although I don't know why they call them "platform" because they are obviously not what I'd consider a platform shoe. I think I'll be ordering another pair in a different color.