The shell looks really chic, I have ordered in black, you can not tell envelope actually, because it's a battery cover with this Flipcover from a really good material, the flip cover is hard and it is up SAMSUNG and down Galaxy S4 it :-)
It fits both front and rear perfect :)
Back on the battery cover is also on top SAMSUNG and I think that black looks better than the original battery cover of more blue silver shimmers with these honeycomb characters.
