It took me a little while to get the strap buckle where I needed it, but there is no sloppy movement of the sandal while I walk. Ive had this installed on my Honda Pilot for a few weeks now. My husband really likes it. Just odd to me that one was SO small and the other was large. As you can see from the pictures, they are still lovely, just a little more understated. As soon as I inserted the earbuds in my ears and put on some music, I was blown back by the quality of the sound as they sounded better than my other TWS earbuds. Not the Roomyrocs. I had to put grippers on the bottom of them to keep her from slipping on our floors. I bought these unicorn slippers for a 5yo girl with slightly big feet. Im not sure its that much better.