Evutec Carrying Case for Samsung Galaxy S6 - Retail Packaging - Black/Gray The outer shell is made with Woven DupontTM Kevlar - Inside of the case is Fused with a shock-resistant TPU lining for ultimate Shock protection Karbon SI Series cases are designed without any metal substances which means you'll never have to worry about interference with your wireless signals - Measures just 1.5mm thick Each Karbon SI Series case is treated and polished with a specially formulated, five-layer Evutouch Coating for exceptionally easy-to-grip, scratch-resistant protection