I even used them in my car. I wore these shoes twice. 5-9, so I ordered a 9-10. Seriously? Straight out of the packaging? Makes me wonder how long these will actually last. Slippers will be returned back in the mail in the morning. The seller did try to come up with a fix for me (GREAT CUSTOMER SERVICE! In terms of audio it is 8/10 in clarity when going under 45mph, 7/10 at 50 - 70mph, and 6. I was on my feet the entire time (7+ hours) and they were a dream on my feet. 7?-207LB and XL was way to big. I was on concrete for a few hours in running shoes my feet hurt so bad .