"I ordered some slippers for my nan and when they came her feet were so swollen they needed to be a size bigger, so we followed the instructions to send them back stating that we wanted another size and within a few days they were here and my nans feet have never been more comfy. She also has shoes and sandals and her feet are always comfortable which is great. Before we could never get shoes to fit and now we always come back to you. Thanks Cosyfeet"