This was a gift for my hubby.  He had couple of those alluminium wallets , that no matter if you pay 10$ or 50$ the clasp always brakes. But he loved the convinience of the accordion shape to accomodate the credit cards. This one satisfies all his requirements. The zipper is xtra strong, it opens wide, and the size is perfect for his back pocket, not too thick.  I paid 60$ for this.....but I think this will last years and years...not 3 months like the alluminium. Money well spent, ah! And it has that security thing...data safe RFID shielding!