DuPont Tyvek Super Envelope Wallet

This wallet is far more practical than it looks. Because it uses DuPont tyvek material. This material makes this envelope wallet opaque, waterproof and breathable, printable, with strong anti-tear characteristics, also antibacterial and hygienic, and does not require traditional needle and thread for sewing. Moreover, this wallet has a concealed storage area just like the opening of a regular envelope, hidden at the narrow end of the wallet.

The article is from Creative Design Blog: http://www.chuangyishejiboke.net/?p=2783