I’m with Marco. I have always appreciated using my iPhones as they were born, a naked robotic core with no adornment. And I’ve never dropped one. But I’ve been using an Apple iPhone 6 leather case for the last couple of weeks, and really liking it.
I’ve never used a case with any of my iPhones, but I’ve always used some sort of sleeve. I’ve only dropped my iPhone once in about 6 years, so I’m not terribly worried about protecting it from accidental falls. To me, casual protection from superficial damage — like scuffs and scratches, particularly on the screen — is more important. Besides, sleeves offer protection when you want it, and disappear when you don’t, which to me is the best of both worlds. I have always loved the way a caseless iPhone feels in my hand.
If you’re interested in trying one, here are some excellent iPhone sleeves:
The Apple iPod socks were perfect for all 3.5-inch iPhones (from the original iPhone to the iPhone 4S). They’ve since been discontinued by Apple, but you can still find them on Amazon.
I’m also a big fan of Sena Cases. The Sena UltraSlim Access leather sleeve is what I currently use on my iPhone 5S, and it’s gorgeous. I really like the texture of the fine leather, and it doesn’t add any bulk to the iPhone, which makes it great to carry in your pocket.
Finally, there’s the Heritage UltraSlim, which is specifically tailored to the iPhone 6 and 6 Plus, and looks even better. If I had an iPhone 6 I would definitely be using one of these.