Fitted with extremely large 53mm drivers, which are normally used in audiophile headphones, the ATH-WS55X is all about giving you maximum sound enjoyment in a portable-sized headphone. In addition to the large driver, an extra chamber in the headphones increases overall system damping to allow maximum bass expansion, making the WS55x perfect for metal, hip hop, EDM and any bass heavy music. The WS55X also features soft synthetic leather padding that sits comfortably around your ears. The headphones provide a comfortable seal that not only ensures the accurate delivery of bass, but also minimizes sound leakage. The cushioned headband and the smooth adjustable slider ensure a comfortable fit even after prolonged usage.