Zorilon, Once you are able to see the blue foam of the earpads then that means that the black leather outer covering has pulled away from its original glued position, and the earpads should be replaced. The Susvara earpads are very poorly constructed and I am presently on my 4th pair of Susvara earpads. By contrast, I have never had to replace the earpads on my HiFiMan HE1000 headphones. HiFiMan needs to radically revise the design of the Susvara earpads in order to make them more durable! Jeff.