Speck Products SPK-A1402 SmartFlex Card for iPhone 4S - 1 Pack - Retail Packaging - Black
Skip the wallet and leave the purse at home with this cleverly designed iPhone case. Carry up to 3 credit-card sized cards (or folded bills) securely in the built-in slot. Made from flexible polymer for lightweight, durable protection. Rubberized button covers add protection and feel, and the raised edge bezel helps protect your screen.