At first it is possible that one quite heavy in your pocket and take out again, but after a short time and puts the device fits perfectly. The rough back of the 64GB version will also play their part.
In your pocket you have to not be afraid to have the seams, because it acts very robust. The best of the Fitbag I like that nothing marred my phone and I always have a clean display, if I understand the unit.
From my starry 5 Stars)