The Isaora Microlight IR Down Jacket ($225) is Isaora’s most advanced jacket to date. It introduces down filling loaded with thermo-reactive minerals that convert your own body heat into infrared energy, medically proven to promote circulation, increase tissue oxygen levels, facilitate cell recovery, and regulate body temperature. They’ve also treated the down with their HyperDry technology making it one of the most water-resistant on the market. Additional features include 2 main zip pockets, elastic cuff border, hood with adjustable drawcord, a weight of only 324 grams and a 700 fill power rating. This might be the perfect everyday jacket for the coming season.