How to Dress for Winter Running
It's important to pick the right materials for running during the winter. Fabric like cotton absorbs sweat but doesn't dry quickly, which can sap warmth from your body. So choose technical, moisture-wicking fabrics or clothes made with wool to stay dry and warm.
You should also dress in layers that you can shed as you warm up. Start with base layers like a T-shirt or tank top, and then throw on a long sleeve shirt and cover it all with a jacket.
As cold as you may feel when you head out, though, remember that you'll warm up and even start to sweat during your run. A general rule about what to wear for running in cold weather is to dress for temperatures that are 10 to 20 degrees warmer than the current outside temperature.
Your nose, fingers and ears are prone to freeze first, though, so be sure to keep them well protected. Try a balaclava—a knit face mask that covers the whole head, with holes for nose and eyes—or wear a hat with a Buff pulled up to help cover your face. Pick a pair of mittens with a nylon shell, or wear glove liners underneath. If your hands start to feel numb and turn pale, warm them as soon as possible, as these are early signs of frostbite. If it's really cold, consider inserting a pair of HotHands into your gloves or mittens, too.