|This Air Mail Wallet($15) is made of Tyvek, which is the same thing FedEx and Priority Mail make their nigh-unrippable packages out of. It features tear-resistant, water-resistant, expandable and, most importantly, recyclable. I love this envelope wallet, Cool! See the video at the below!
Made from Tyvek (think express mail envelopes), the Mighty Wallet resists tearing because of thousands of interlocking plastic fibers spun in random patterns giving the wallet incredible strength.