An ideal breathing system for virtually any diving scenario, the balanced diaphragm MK17 EVO is completely sealed off from the elements, ensuring trouble-free operation no matter how cold or murky the water gets. It is more compact yet delivers better breathing performance than its predecessor. Its improved internal design allows more airflow from the LP ports which have been reconfigured for better hose routing. The full-featured air-balanced S560 second stage, built with a rugged nylon fiberglass case, is lightweight and easy to use. Together they create the must-have reg system for recreational divers of all skill levels. Now you can coordinate your MK17 EVO/S560 system with interchangeable S560 purge covers in a choice of colors (Blue, White, Yellow, Orange, Purple and Pink). Pick a colour that celebrates your diving style!