The main body material is made of tanner that has acquired the only*LWG (leather working group) in Japan, and is specially tanned to steer leather and dye it, rubs the silver surface and does not float. We use chemicals to process tight coat. The silver surface is flattened with a binder, and spraying the paint makes it a beautiful colored leather. The surface has a well -finished finish by embossing a kip -like style. The attached leather used in the interior uses a kip leather with a well -balanced skin and robustness. It has a high density of fiber, supple and tastes, and is said to be perfect for making leather accessories. The surface is made of resin and is not easily damaged and has a deep glossy leather. The IC card can be put in the front in common with all types. * LWG (leather working group) is an international organization that audits Nameshi Factory. It evaluates and ranks environmental compliance and ranking abilities, and pursues leather traceability.