Best cold-weather workout gear It’s getting cold and dark outside, but don’t let that get in the way of your next outdoor (or indoor) workout. We’ve got the hottest fall fashions that will keep you warm, stylish and safe while you work up a sweat this season. By Kate Daley Slide: 1 of 10 auto-play pause next first speed 1. Lightweight workout vest This super-light eco-friendly vest is the perfect layering piece. Made with windproof and water-resistant fabric, it also has a Micropolar lining to keep you just warm enough. Plus, it has reflective tape detailing for safety at night. Light Vest, $100, lolewomen.com.