April 11, 2008 Safety clothing might be imperative for some jobs, but when it becomes a hindrance and makes work uncomfortable and annoying, it needs to be reassessed. Take the orange safety suits worn by helicopter crews working on oil platforms off the coast of Norway - they're designed to stop the wearer from drowning or freezing to death if their choppers crash-land into the freezing ocean - but the properties that make them effective insulators also make them incredibly hot and sweaty to work in. Enter Helly Hansen's smart suit, impregnated with micro-particles of paraffin wax. The wax slowly melts as body temperatures increase, gradually sucking heat away from the body to cool the wearer through the day, making it much more comfortable. And if the wearer is plunged into icy water, the wax releases stored heat as it solidifies, allowing the suit to be even more effective at the safety component of its job.