PDT's product designers worked with Thule to conceptualize a new iPhone case that is waterproof, dustproof and built for the adventure Thule enthusiasts seek. Thule initiated an IP mitigation exercise to ensure there was no conflict with existing products on the market. The mute switch design proved to be the most complex part of the design, requiring multiple iterations before resulting in a reliable, IP-68 sealed solution. First pass two-shot printed prototype parts were created in our on-site prototyping shop using digital material. PDT's engineers tested the functionality of the volume, power & mute buttons while also testing the grip of the back surface using these prototype cases. It easily passed IP-68 testing, confirming the case's effectiveness at protecting the mobile phone completely from dust against long periods of immersion under pressure. Thule's Atmos X5 iPhone 6/6S and 6 Plus/6S Plus cases are a stylish way to protect against drops, fingerprints and scratches without losing any smartphone functionality.