Tired of carrying a bulky wallet in your back pocket? If you do any amount of sitting then you know how uncomfortable a thick wallet can be. Here is a wallet created from super strong Tyvek paper - the same stuff used in many inter-office envelopes. Instead of ordinary paper, Tyvek is formed from thousands of long plastic fibres. Fashion a wallet out of this stuff and you have a thin, water resistant, tear resistant and durable way to carry up to 25 credit cards plus cash. Made from 25% post-consumer recycled content, the wallets are available in Par Avion and Newsprint for about $18 (depending upon currency conversion from 8.95 pounds).

Tyvek Wallets