Not-available on devices with a curved-screen. Drop Protection System. The four corners of double-thick silicone insulate the device protecting it from casual drops and everyday accidents. Anti-Skid Design.Multi-coated rubberized finish lavishes the Aegis with velvet touch and sleek look. Technical Specs. The inner lining and bumpers are durable silicone. The hard cover is made of polycarbonate. All materials are 100% RoHS compliant.