I love that these are flat and have closed toe and opened back for easy slip-on and off. I hate to be ?that person? but they?re so comfortable I may order a pair in each color. There was some black marks on the inside of the bag but it had no affect on my clothes, and you could not see it from the outside. Get the Micca RB42s if you can, they keep selling out! Very annoyed. Its thin, weak and far too stretchy to be useful. ) and the two soft flask in the front - thats enough water for a 3 hours run in hot weather. I like them very much, new summer slides. I am not impressed in the least, however for the price, it works fine. Microphone: When youre talking on the phone, the listener doesnt report anything but hearing me crystal clear.