Speck CandyShell Card Case
One brand that is well-known in case making is Speck, and they have an excellent wallet case option for the iPhone 6. While not as fancy looking or as thin as the CM4 case mentioned before it, Speck's case is a quality option with a few differences.
For one, it has a dual-layer lining with soft rubber on the inside for added protection, then a hard outer shell for ultimate durability. This makes it slightly heavier and more bulky than the CM4, but could provide more protection. It holds 3 cards plus cash as well, but the hard shell won't have the give of the fabric used by CM4, making it hard to add cash on top of 3 credit cards. It comes in black, white and blue (target exclusive) and pink. Most are sold out for now, but head to a Target store if you're interested.
Speck CandyShell Card Case - Buy for $39.95 on Amazon
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