Aside from the risk of accidentally posting it, there's nothing about your life that won't be improved by having a wallet that looks uncannily like an Air Mail envelope. You see, though it's obviously quite a cool wallet to have for that resemblance alone, it's also a super-strong, near-indestructible wallet too. Made of Tyvek, it is constructed of densely-woven polyethylene fibres that are extremely tough and, quite cheeringly, 100% recyclable.

But of course, the main reason you'd want one isn't the cleverness behind it, it's the casual thrill of alarming your friends by seemingly pulling all your money out of nothing more secure than an Air Mail envelope. It's got space for about 16 credit cards and all the cash you might have on you, so you don't have to worry about sacrificing practicality for a quirky look.