Well, I received my Tech 21 with cover case for my iPhone 6 and to be honest, its a case which is not for me.
The box lingo states 'a slim fitting case', however, I actually found that the case makes the phone look HUGE - almost the size of the iPhone 6+. Holding the case in my right hand, I could barely reach over to the far left of the screen with my thumb.
I don't like the way that the cover (the flap) just rests on the screen with no magnet but I do like the material used (its like a soft velvety material). I also don't like that when you fold the cover back on itself (i.e. when you use the phone one handed), the whole case feels massive because of the large gap between the flap and the back of the case.
I put this case against my current case (the Proporta Ted Baker case linked above), and the Ted Baker case would actually fit INSIDE the Tech 21
- the Tech 21 is indeed NOT very slim!
The overbearing factor which has made me stay with my Ted Baker case is the magnet on the flap which keeps the flap closed even when the case is held upside down and also when you fold the flap back against the back of the case - it again, sticks to the back of the case which makes the whole case feel slim (which it actually is).