When read this, consider how much you paid for the product. Maybe not a big deal for most but I wear size 5 and have a slim foot so this makes a difference on how loosely the sandal fits. It helps me sweat in my mid section, great support and once you get use to it, its extremely comfortable. These were far too small and I suggest not an accurate size 3. Example: last night I had Spiderverse playing on my second monitor while I worked on the other and I was able to walk into the kitchen for a drink without having to pause the movie. We use these on our 46 Catamaran so that we can communicate to the helms person when we are docking or doing sail handling. Excellent corset! It is a bit like walking on dense memory foam. The earbuds mold nicely in the ears and provide a good amount of noise cancelling ability. Do buy the extra foam earpiece covers.