On this style I would buy a size half bigger. It works quite well. Again, total disappointment! It works really good, quality sounds, nice design. I’m impressed that this is a quick and painless way to remove ear wax. I received mine today and one of the spice containers came broken. So cute, but the cuteness is time-limited unfortunately as the color wears off immediately. Would have preferred it to white or brushed nickel to match our bathroom but this is just temporary until they grow. They cost a bit more than your average slipper but well worth it as theyll last longer. Except for one little issue of both my pinky toes getting blisters rubbed on them after only a few minutes of walking around inside my house in the air conditioning.