This high-performance jacket can be used for a variety of activities from hiking and climbing to cycling. The front is made with CLIMAPRO™, which has the right amount of windproofing, insulation, and breathability. The back and underarm areas are made with Stretch CLIMAPLUS®, which has excellent breathability and stretch. In addition to blocking cold wind from the front, it effectively releases the heat and moisture that tends to accumulate while wearing a backpack. Though it has an athletic fit, the excellent stretch makes it easy to move during aerobic activities like cycling.