It is not as bulky as I thought it would be, and it keeps my earbuds and case protected. The top part is tight against the foot. I drive a bus part time and I like using my phone for my GPS and this worked perfectly. But unfortunately the container was broken so I will have to buy a new container. While not the most complex of products, they simply provide a really good level of protection to your headphones. I replaced my worn out beige koolaburra slippers ordering the pink pair on Amazon. I was happy overall but then one side stopped working for no apparent reason. It works well in all of those applications. My 3rd pair of these arrived earlier than expected. Super awesome, Extra power at 180W.