Our shoe manufacturers do not make 1/2 sizes. If you normally wear a 6.5 you need to decide if you would rather it a little tighter or looser. Many girls prefer the security of a tight shoes though, but the decision is completely up to you. All of our shoes will stretch over time and will fit more comfortably the longer you wear them. If you need to discuss your shoe size please call us at 972-910-9294. We are always happy to help you make the best decision for you and your feet.