I wear a size 8 but bought the 8-9 for more room. No way both pair belong to the same company. I am a longtime fan of the assassins creed series. i have worn this style for decades. Shoes look amazing and are SO comfortable to wear for a long period of time. After less than 2 months of wear, the soles have completely worn out in the toes, and the back of one slipper has a big hole from where the tag attaches. I’m 5’8 and it was a bit short in the back, but I wasn’t doing too much (moving around) in the dress but having to take pictures. well it arrived today. But I’m sure as I wear them more-it will be easy to get them fastened. Comfortable, affordable, good quality and perfect for work.