OtterBox iPhone 3G / 3GS Commuter Series Case The OtterBox Commuter Series for iPhone 3G and 3GS is the perfect balance between protection and style: Sleek and tough. About our Commuter Series: Three slender, yet sturdy layers offer tough protection in a sleek package. Compatible with 8GB and 16GB iPhone 3G, 16GB and 32GB iPhone 3GS Access to all buttons and features Silicone plugs provide coverage for ports Where the case is slim and attractive it provides outstanding protection from everyday mishaps. With a slim form factor and smooth outer layer, this case slides easily in and out of a pocket, purse or bag.