The SOLIDO brings a new approach to wallet design on Kickstarter. The folded metal design acts like a pocket, a steel spring plate inside keeps pressure on the cards so they stay in place.The cards stay in place even though there seem to be no sides on the wallet to keep them in.Solido is available in Stainless Steel version and Titanium
http://www.kickstarter.com/projects/29042914/solido-new-approach-to-wallet-design?ref=category
