ok, but not necessary ...

positive: despite envelope can attach it to iPod using the "clipper". for me personally because I practically then the ipod not constantly jacket made of or equivalent pick a song needs to press on.

the shell is very small, so that all functions can be fully used. I ask myself only whether the envelope really protects. annoying is the fact that the envelope very easily slip, especially if one pushes the ipod into tight pockets. All in all ok, but I think no need for ipod 6 - owners.