The top strap is a buckle, and set on its widest setting I could barely get my foot in. Okay, I wouldnt wear them to white tie or black tie affairs, but I wish I could. I like the price and while its not overly attractive, its perfect for the basement. Nimmt man diese heraus, dann sind sie sofort einsatzbereit. They?re only 3? heels, feel like 3? heels but look higher, very classy. There are entries on the side that allow you to plug your earphones/headphones and/or charger while holding your phone or you can plug your charger into the controller itself to activate wireless charging from the charger vs the battery. The only cool thing - a lot of accessories in the box. That right there is the only reason for the single star. I tested this on my iPad, my Samsung S7 pro tablet, kindle firestick, CHROMCAST android tv, my laptops (3 dells), OnePlus 9pro, OnePlus 7t Pro and OnePlus 8t phones and have had no issues! In terms of sizing, I have a wider foot at the base of my toes and these are a tad more narrow than my other pairs of keens so keep that in mind.