This is a 3D printable evolution of the iPhone 5/5s version I successfully launched on Kickstarter. That version is made from injection moulded polycarbonate with a silicone rubber SIM card and tool holder. That case is still available for sale at http://www.qaramel.com.
This iPhone 6 version has been successfully test printed and confirmed to fit on an iPhone 6. It has NOT yet been confirmed if it fits an iPhone 6s, as the newer iPhone is ever so slightly thicker than the previous generation.