Hike to the top of the hill without changing your fit in the Patagonia Women's Nano-Air Light Vest. The stretchy and breathable FullRange® insulation dumps excess heat when you're trucking along and provides warmth when you hit cooler altitudes. Articulating patterning and strategically placed, low-profile quilting works with stretchy fabric and impeccable insulation to provide unhindered movement. Two handwarmer pockets and a single chest pocket are all zippered to keep your hiking trinkets and snacks safe and easily accessible. Weighting in at only six ounces, this versatile garment won't bog you down as you do what you love.