The Half Dollar Mighty Wallet by Ron English.

The Mighty Wallet® is tear-resistant, water-resistant, expandable and recyclable. The ingenious origami construction and stitch less design reinforces the materials own strength and allows these very slim wallets to instantly expand and adapt to your own personal storage needs.

• 2 large pockets for cash and receipts. 
• 2 credit card pockets that expand to hold lots of cards. 
• 2 quick access business card pockets.
• 4 writable Tyvek® business cards included.
• open - 8" w x 3.25" h x .125" d
• 0.6 oz