Andrew Hooge, CSCS For most of us, regulating body temperature is a common problem when motoring down the mountain. We struggle with the vicious cycle of zipping up our jacket at the top of the mountain and unzipping half way down. How would you like a jacket that knows when you're hot or cold and self adjusts? The Schoeller Phase Change Material in Helly Hansen's Odin PCM soft shell imbeds paraffin to help regulate the jackets' temperature. According to the company, when someone is skiing intensely and the body warms up, the jacket stores the heat in the fabric. Conversely, when the temperature falls or activity is reduced (for example, when I'm freezing my tail off on the lift at 11,000 feet), the previously stored heat is released for added warmth. As soon as I get my hands on one, I'll let you know how it performs. www.hellyhansenusa.com: $550.00