Make your favorite superhero known with the SOLO Thanos Series Carbon Fiber Wallets, which come in six styles. Choose from the SOLO Compact, SOLO Super Slim, SOLO The Beast, SOLO Bifolder, SOLO Elite, and SOLO Efficient. And these are so much more than standard wallets. In fact, these Marvel wallets each come with a built-in key holder to give you a safe place to store your everyday carry items. Moreover, every one also has an integrated bottle opener so you..