Material : Polycarbonate/ TPU (Thermoplastic polyurethane). Hidden card slot slides open to fit up to 2 cards and securely locks closed [US Pat. No. 9,049,283 B1]nProtective interior lining safeguards cards while the Quick Access gap keeps it easy to access cardsnMinimal design is slimmer than wallets and sleek in appearancenDual-layer construction with Air Cushion Technology protects your phone [U.S. Patent No. D747306]niPhone 6s Case Compatible with Apple iPhone 6s (2015) u0026amp; iPhone 6 (2014)n