They usually fit really well, are comfortable, and last a long time. The fit, finish and construction are definitely high-end. And so, when I the replacements, I ordered the next size down, and that pair did fit comfortably. Fabulous sandals! However an Amazon representative fixed it all for me and Im looking for my replacement in two days. My daughter has a very regular petite feet and comfortably wears size 10. Perfect for the beach, pool party etc. Very convenient as I can just lay my phone on it. I swapped to the perforated ?slanted? pad made by BRAINWAVZ and while I didn?t mind the original sound signature in it?s lows, this pad swap has created a much more balanced sound in the lows, while also making the signature much more interesting in the upper mids and treble. Works good,the red and black wires are opposite,red/ground,black /positive nothing to tell you this.