The iMoBi Ultra Slim Back Cover black keeps its promises to the Product description 100%. Due to its smooth, mostly glass surfaces Sony Xperia Z3C is indeed comfortable to hold, but I always had the fear that it slips out of my hand. This back cover this danger has passed. However, since the part is so thin, the Z3C is the back cover just as well in the hand, because the rough surface but comfortable grip. Although the noble look of the phone suffers minimal including, but that's my value. The fit is excellent, the back cover is firmly seated on the smartphone, all openings sin at the right places, everything is fully and lavalier use. The extent to which the back cover also provides mechanical protection for example in a fall depends mainly sure on how it strikes in such a case. That I can tell difficulties and hope that I have never judge. In conclusion, I can only express a full purchase recommendation from the evaluation in new condition yet.