eBay has the Renewgoo Ultra-Slim RFID Blocking Aluminum Wallet (Black, Grey, or Silver) for $15 with free shipping. Features holds up to 12 cards, wireless theft protection, made of two aluminum plates and is only 6mm thick.
Amazon has the CLC 75-Pocket Tool Backpack (1132) for $84 with free shipping. List price: $150. Features 6 zippered compartments & 75 pockets, sleeves, and loops, adjustable padded shoulder straps & padded handles, 7" x 5.5" plastic organizer tray, durable ballistic polyester fabric.
Has excellent Amazon Reviews.