I normally wear an 8/8. The ear pieces do come with various sized options, so I do the best that I can. First, In order to help installation, I backed the car up on a set of portable ramps and this gives a bit of extra room to work plus makes it easy to lift the right side of the mount up under the exhaust. Me pueden decir por que si dice devolución gratuita?Graciasss Allerdings stellt das kein großes Problem dar, weil leicht gepolsterte Blasenpflaster mit dabei sind und ich die kleine Lücke an der Ferse damit sehr gut füllen kann :)Mit im Lieferumfang:2x Fersenpflaster2x Gel Ballenpolster2x Ersatzdübel für den AbsatzDie Schuhe haben mich restlos überzeugt. Great unit for a small room or tabletop virtual meeting. There is support in the middle of the foot all the way across, not just in the arch. These are orthotic/orthopedic, so incredibly healthy for you. Very surprised. It as a very good base and does not get noisy at high volume as well.