Dress in layers for fall runs
The goal is to stay warm without overheating, which can be difficult in chilly weather. At first, your body will be cold, but as you run you may find that you become sweaty and uncomfortable. dressing in layers will help solve this problem.
The first layer should be a long-sleeved shirt or turtleneck made of fabric especially designed for drawing moisture away from your skin. Depending on the temperature, you many also want long underwear or tights on your legs, made from the same fabric. Avoid cotton; it traps the sweat next to your skin and makes you clammy and cold.
The next layer is for warmth. A heavy sweatshirt or fleece jacket or shell will insulate and hold body warmth in. Concentrate on keeping your core warm. As you run, you will be able to remove this layer if needed.
On top, wear a jacket made of nylon or other waterproof fabric. This top layer repels wind, rain or snow. It can also be removed if you don't need it.