The outer layer of the new SK-M11Plus case, specifically designed for the player by FiiO, consist of high-quality cattle hide leather. This leather is treated with an oil wax process, giving it both an unparalleled premium feel and an even glossy lustre throughout for a decidedly exceptional look. The six-generation honeycomb design, same as that features on the M11 Plus, features prominently on this specially-made case to perfectly complement the player. The rear has been carefully designed to include a stainless-steel heat dissipation grill. The cattle hide surface and the honeycomb design work together in a design that thoughtfully protects your player at every corner, without sacrificing ergonomics for protection. Each cut-out is perfectly aligned with the buttons to ensure they are easy to access, and special attention is paid to the innovative touch + button volume panel to guarantee it is still easy to use even with the case. All bottom ports are exposed for easy connection but are also protected by the thick leather layer, and seamlessly integrates with the rest of the case design.