Attention afin de ne pas avoir de copie ou imitation Samsung, sélectionner le vendeur Samsung expédié par Amazon, autrement, une chance sur deux davoir un produit contrefait et de mauvaise qualité. I am at the point where I need a little more cushion is any shoe I wear. But this time they fit snug across the instep. Its a shame I had to go through this 2 days later despite only being paired to my phone and not losing charge at all. This rack has worked fine on my mountain bike and I havent had any issues with keeping it on tightly, including a fair amount of trail riding and a fall strong enough to move my handlebars and crack my helmet. I dont know if its the player, the USB Bluetooth adapter, Windows 7 or some combination of them together. When first put on could barely get top strap over my foot. The studs seem durable, none are missing. In this case, with my standard 9. Got a medium and a large!