Military grade, durable, machined aluminum exterior frame. Use of Machine metal instead of plastic provides military-level drop protection in a slim, pocketable and premium case. Soft rubber interior lining combined with a hard polycarbonate shell for protection. Raised lip protects your screen from drops and surface scratches. Drop tested to survive 9.10´ (3M) drops on concrete Simple snap on construction means no tools or screws required X-Doria Defense Shield case is the ultimate way to protect your in style.