iFace Mark 1 Revolution Case for iPhone 6 - Retail Packaging - Yellow A Streamline design on the back of case provides excellent and different feeling of a grip We applied beehive patterns inside the urethane to maintain the anti-shock function, while reducing weight and volume, aiming for differentiation in design and function Breaking away from old idea that cell phone cases have to be small, we used urethane materials in order to focus on anti-shock function, the inherent function of this case. Enable to control the button delicately by membrane method. 99.9% Gold-plated sticker ensures genuine iFace products.