Lunatik has recently updated their ultra-protective enclosures for the iPhone 5s. Here we have the TAKTIK Strike in what I'd like to call "Stormtrooper White" which I think really gives the phone a snazzy two-tone science-fictiony look, particularly when combined with the black machine screws and silcone rubber. The TAKTIK Strike is $60 in either white or the classic black color.
The rear of the TAKTIK Strike and TAKTIK Extreme which has been altered for the alignment of the iPhone 5s camera and flash.
The bottom of the TAKTIK Strike and the TAKTIK Extreme has a metal latch that covers the audio port and a silicone tab that can be bent outwards to accomodate the lightning connector when charging.
TAKTIK Extreme ($124.00) adds an additional protection with a layer of Gorilla Glass on top of the iPhone 5 / 5s display. However, the Touch ID sensor is usable strictly as a home button in this case.
The rear of the TAKTIK Strike & Extreme in both color combos. iPhone 5s version is on the left, iPhone 5 on the right.