These are hands down one of the most comfortable pair of sandals I have ever worn. I tore a fascia on the bottom of one of my feet earlier this summer and finding a comfortable, affordable, arch- supportive sandal has been very difficult. Why 3 stars? The quality of the material. Yes, I knew these are man made materials when I bought them, but the chemical smell they give off gave me a headache, and these are basically styrofoam. (For comparison, Crocs seem to be of superior quality.) I simply don't trust that they will hold up over time. If these cost $5 or less, I might be more forgiving. I think if you are willing to air them out and limit yourself to wearing them primarily indoors, they will work for you.  If this company ever decides to use better quality materials, I will gladly buy them. They are that comfortable.  Until then, I am returning mine and resuming my search for comfy sandals.