For crystal clear protection around your iPhone 6/6s the Ultra Hybrid Case is as slim as it is transparent.
The Ultra Hybrid Case case features a thin polycarbonate shell on the back that's surrounded by a clear TPU bumper — easy to install and remove when necessary. The bumper has cutouts for the charging port, microphone, speaker, auxiliary port, camera, and mute switch. The side buttons, however, are slightly raised for an easy press while the case surrounds your iPhone 6 or iPhone 6s.
The Spigen Ultra Hybrid is incredibly slim, making sure not to bulk up your iPhone. It doesn't add an incredible amount of grip to the device, but the TPU bumper does help. The major drawback would be how easy that clear polycarbonate accumulates fingerprints. It's not solely an issue with this cover, since fingerprints are always noticeable on clear cases. Other things to expect are scratches and scuffs to start appearing after the first week or so of use. Granted, unless it's a deep scratch it won't be very noticeable.
In terms of drop protection, the Spigen Ultra Hybrid will do a decent job at mitigating damage to your iPhone. Obviously this case is pretty slim and there aren't any separate layers to do a lot of shock absorption. Still, the few times my iPhone has managed to take a tumble it's stayed inside the case and no damage was done to phone. You can also lay the iPhone face-down on any flat surface without worry of the screen scraping thanks to the raised bumper on the front.
For casual protection against minor drops the Ultra Hybrid Case is a good choice for showing off the original design of your iPhone 6 or iPhone 6s. If you're someone who tends to be a bit rougher with their device you may want to opt for something with more bulk. This case is available in clear (as shown), or with a black, mint, rose, or space bumper.