The increase in depth is crazy. Charging. This time I put it in the middle of a large table to check the cell phone getting kicked off. They have a loose fit so it?s easy to get on and off my chunky baby. (I?ve been a professional musician since 1989, with a Master?s degree in music education, so my sense of hearing and sound quality *may* be more developed than non-musicians. Good product for reasonable price. Doesn?t work with our beats headphones. I love the elastic band across the ankle and the back zipper. They have a nice thick bottom, could be a little bit more cushioned but arent bad. I fell in love with these sandals as soon as I saw the pictures posted.