I wear a 6 1/2 and those don't come in half sizes. I would suggest ordering a half size up not down. These flip flops are the most stylist, cutest, most comfortable flip flops you will ever own. I am on my 3rd pair. They last about a year and the soles just get worn out. But, they have such a good cushioning for walking around the mall, or outlet malls when you have bad feet like me. I never complain when I'm wearing these.