I have the CoverBot flip wallet case. It not only covers the phone, but it doubles as a stand as well. Like the Mozo one, this case has openings for the speaker and mic, so you don't have to keep opening up the flip to answer the phone. I got the carbon fiber version, and it definitely looks nice and professional on the 635. Unlike the Mozo, however, the back part of the CoverBot does not replace the original back shell of the phone itself. Like any other flip cases, you also get a slot for your license and another card. The CoverBot is on Amazon. Since I have less than 10 posts, I cannot post a link, but try to look for it under the keywords "nokia 635 case coverbot". Hope this helps someone who is still looking... by the way, I also have the Nillkin tempered glass screen protector on the phone.