The iPhone 4S is everything Otter were hoping for and more! The assistant "Siri" alone is totally worth protecting. Thank goodness OtterBox has an iPhone 4S case in Defender series ready to keep her safe. This rugged iPhone 4S case provides heavy duty protection from rough treatment in the worst environments. The Defender series iPhone 4S case defends against drops, dust and damage without taking away from the interaction of the iPhone's features. The iPhone 4S Defender series case offers triple-layer protection and is built from a high-impact polycarbonate shell, durable silicone and a built-in screen protector, making it one of the toughest iPhone 4S cases out there.