I use the apple leather case and love it. I resell my phone each year so rolling naked is just not an option for me. Here are a couple of other threads that touch on the subject as well.
I understand not wanting to cover up the BEAUTY of the 5s, but I suggest a case. It also makes it easier to hold with a case on it ...IMO. I'm currently using a Spigen Ultra Hybrid Cyrstal Cleasr Case.....It shows the GOLD off NICELY.....SMILE
Lifeproof Frē case with the darker colored clear back (from the n??d case) here ... I sell my device every new model year and want that thing just as clean and dust free as the day I bought it