Best iPhone 6 Card Case

Hey I'm currently rocking the black smart flex card case by speck on my slate iPhone 5 and its been my favorite case ever. Once blackfriday comes I'm going to be looking for a deal on a 64 GB iPhone 6 and I'm going to need to get a new case. I looked and so far speck isn't offering the smart flex case for the i6. Which is a good one that is comparable in quality and feel to the smartflex? Anybody have one? I'd like one that's easy to put in and take off because I do a lot of running in the summer and I'm always taking the case off to put in my arm band thingy. Thanks!