These are the only MFI cables I've found that have the same connector dimensions as the apple originals
http://www.amazon.com/Certified-iXC...id=1427137600&sr=8-8&keywords=lightning+cable
Even the popular Anker brand cables on Amazon are bigger than the apple original (by less than 1mm in each dimension) and don't work. Both Anker and Monoprice make the connector body larger on their 10ft cables compared to the 3ft. I have one of the original monoprice 3ft and 6in cables from 2012 (?) when they first introduced their MFI lightning cables. Both are too big, although I read they recently updated their cables to make the connector bodies smaller.
I had lifeproof cases for my iphone 5, 5s, and ipad mini and all of those cases had a MUCH bigger connector opening that took any of the aftermarket cables I own.
I just got the 12" version. I can verify it does fit my 6 Fre. Some reviews said newer versions of the cable don't. They come in 3 lengths but the reviews didn't say which one.
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