[turboengine]

http://www.sony.net/Fun/design/activ.../nex-7/02.html

Design goals shared by Sony engineers
Takagi：The grip is shaped to fit securely under your middle finger, ring finger, and little finger. It's made of rubber, which keeps your fingers in place and feels luxurious, as the grip of a premium camera should. Rubber is not easy for product engineers to work with, though. Unlike ordinary elastomers, it can't be molded in one piece. Rubber parts tend to be thicker, among other disadvantages. But because our engineers shared our goal of a camera that feels perfect in your hand, we decided to use rubber. The fine, faux-leather texture was also developed especially for this model. In textural detail and luster, it's different from most SLRs grips.

rubber = Kautschuk