"I've been trying to take my workout outdoors for a run or walk at least three times a week. As the temperature chills in October, the Lululemon Down For It Vest ($148) is keeping me cosy. It's wind-resistant, lightweight, and has Primaloft® insulation, which warms places most exposed to rain and snow. It will be coming in handy for the first few snowfalls of the season." — GFR