Next time I will shop for them at local retail store - might make a difference. 5 very wide feet and ordered the 9-10. The QC 35 and QC 20 are no exception. If you have high arches and cannot find anything else, like me, order these. SOUND - mind blowing for this price, mids, highs, bass, you can hear and feel every note, instrument and voice! The little bag that comes with it is an added bonus that I love. We added a basket and had room for luggage for 4 adults on a road trip. No instructions or Items original box. When I read the reviews, a number of people commented that the slippers were too tight, a few said they had wide feet, but others didnt. I ordered this particular towel bar because it showed 2 ways to mount it, screwing it in and glue.