The shoes really run big and I needed the next size down. I called the customer service number as the instructions to exchange them were not working. I spent over 2 hours on 4 separate occasions on hold waiting to speak to someone, I even pushed a button for them to call me when they reached my number in the que, i never received a call. To be totally honest, my frustration level was off the hook. We finally picked one of the addresses on the invoice and send them back, who knows if it was the correct one.