Tough acrylic lens for top-quality video and extra protection * Note: the lens is permanently attached, do not attempt to remove * Operate all controls easily through the supple TPU material * Like most of Aquapac"s cases it"ll float if you drop it in the water * The Aquaclip® (a patented, ultra-secure, rustproof, injection-molded plastic seal) opens and closes with a simple twist of three levers, and everything stays in one piece even when open