I normally wear an 8.5 and my foot was swimming in the 8.5/9, even with the strap tightened as far as it would go. However the 7.5/8 and was perfect. These shoes are incredibly comfortable right out of the box. The leather is smooth and buttery, they fit securely, and they don't rub or chafe anywhere. The cork sole is like walking on a cloud. They also look super chic and will be versatile sandals for both sightseeing and wearing out to nice dinners on our upcoming trip to Europe. Great arch support. I honestly did not want to take them off after trying them on!