Each Karbon S Osprey case is treated and polished with our specially formulated, five-layer Evutouch® Coating for exceptional scratch-resistance. The Evutouch® easy-to-grip tactile feel will prevent your smartphone from slipping out of your hands or sliding off of smooth surfaces.We designed our Karbon S Osprey cases without any metal substances or components, so you'll never have to worry about interference with your wireless signals.