The day's forecast calls for strong winds and low temps but that won't stop us from getting after it on the trail when we're zipped up in the Mountain Hardwear Kor Airshell Warm Vest. A lightweight Pertex Quantum Air construction does its part to help us slice through windy conditions while also deflecting rain drizzles and the light insulation brings just enough to our core to help us layer like a champ. Not to mention this vest uses recycled materials to help us explore the planet we love without leaving as big of a footprint.