Keystone ECO W4PS-BLK-001 MarineCase IP58 Certified Slimline Waterproof Case for iPhone 4S/4 - 1 Pack - Retail Packaging - Black Waterproof, snow proof & sand proof protective case for iPhone 4S/4, neck strap included. Waterproof up to 20 ft./6 m, IP58 certified. Full iPhone touch screen and call functionality. Ideal for underwater video and daylight picture taking. Unique lock design for secure closure. Slim & compact design.