Now to the actual topic!
I own two of these Bumper, white / green and green tranparent / white. Both fit like a glove.
Connectors for charging cable and earphones are easily accessible as well as the button for muting.
The metal buttons of the iPhone were taken up what looks again very chic and high quality in the Bumper.
All functions are retained. The only slight drawback - probably a like it or other
Charging cable from the accessories not optimal.
CONCLUSION: Decent processing, fine appearance, class price-performance ratio (Apple original about 29 euros!)