The Defender Series Samsung Galaxy S3 case offers three layers of. The two-piece polycarbonate inner layer snaps together around the device to form a secure foundation. The inner layer includes a built-in screen protector that prevents scratches while interior memory foam pads cradle the device to provide added shock absorption. The outer layer is made up of rugged silicone that wraps around the inner layer to absorb impact. The Defender Series comes with a ratcheting belt holster that can also double as a viewing stand.