We used it to drive 543 miles to Maine in August. I used to never listen to ear phones on my long bike rides because they had to be so loud as to drown out wind noise that I couldnt hear traffic. i havent used them in a while. I returned them and reordered an 8½. I purchased these slippers to wear in the hospital (and probably on the return home) after I have my first child. Super cute but don?t fit my feet. I also didnt know how my baby would be delivered. Great product for price- but not adjustable I use this on my face and I did use a steamy washcloth to soften the hair prior to use. If you have wide feet like I do its going to be a tight fit at first.