Although not officially announced, Spigen has taken the liberty to start naming its new cases as iPhone 5S compatible. And of course, presumably there won't be any design differences, any iPhone 5S case will also be backwards compatible with the iPhone 5. Spigen has released what it claims to be its most protective and rugged case yet, the Tough Armor - a dual-layer Slim Armor-follow up case featuring a TPU layer with air-gap corners that help absorb shock and impacts as well as a hard outer polycarbonate shell. Lastly, an extra thick lip periphery will protect the iPhone's screen even when using a tempered glass screen protector. Spigen claims that its Touch Armor case is thinner and less bulkier than some of Otterbox's extremely protective cases, yet even so it offers the same amount of protection thanks to how it has been designed. The Touch Armor case is now available for $30 in multiple colors, and fits both the iPhone 5 and iPhone 5S.

Spigen's second new case release to feature its air cushioning technology is called the Ultra Hybrid, which is a slim combination of a shock-absorbing TPU band featuring Spigen's air-gap corner protection melded with a crystal clear hard polycarbonate back design. The Ultra Hybrid's TPU band creates an even raised protection on either side to help protect both the iPhone's screen as well as the clear hard polycarbonate back from getting scratched from various surfaces. Spigen's Ultra Hybrid case is compatible with both the iPhone 5 and iPhone 5S, comes in black or gray and sells for $13.