Astell kern ak70 pu leather case black the ak70s casing with its simple design and compact size is made with the thinnest and lightest material available in the market so that it can fit the products concept well and can be portable anytime anywhere the material selected for this important role was created by synt3 a world class manufacturer of polyurethane located in milan italy the diverse patterns and colours seen in the new brands developed by synt3 are consistently regarded as new sta