Someone had come up with the idea of wanting a cellphone cozy, because iPhones were known to have their batteries drain in very cold temperatures. I made this after I had a commission to make a cozy - not only does it have a piece that folds over to completely cover the cellphone, but it also has an opening at the top for the phone jack, so you can set your Playlist, and listen to your music while your phone is covered up and cozy :)