These are very comfortable, as I would expect a good pair of Clarks to be. The sound stage on the DT 880 is not so "zoomed-in" like in the T90, so they dont sound as full, but that "distance" in the sound presentation makes the DT 880 transmit something that the T90 lack. it?s perfect and looks beautiful! I have a pair of Adidas Superstar slides that I bought about 7 years ago. Comfortable and easy to clean. Received the extender quickly. Im hoping they will let me exchange it for a bigger size because I really do want to try the product. I got two of these, one for me and one for my granddaughter. Like most of us, I dont have perfect feet in terms of even wear, and it is only the outer edge of the right sandal that has worn right down to the footbed. However, even though it was tight it was not uncomfortable!