Question: how to stay warm outside?
Answer: Dress in Layers. Wear several layers of clothing and peel them off if you get too warm. ... 
Stay Dry. Nothing chills you like wet skin. ... 
Keep Head, Neck, Hands and Feet Toasty. Your extremities let off the most heat—so keep them wrapped with warm scarves, hats, mittens or gloves, and thick socks!
Bring a Backpack. ... 
Feet First.