There is a line of heat clothing, including these pants, that HEAT UP to keep you warm! You can get your heating apparels battery here.
Battery Powered Heated Pants
ActionHeat 5V Battery Heated Jacket Insert - The Warming Store
You Can Get A Battery Operated Heated Seat Cushion For The Person Who Is Always Cold
Jack In The Box Just Released Boba Drinks And My Holidays Are Now Complete
Starbucks Released Reusable Christmas Cups and I Need Them Now
Gerbing 7V Battery Women's Heated Pants – Gerbing Heated Clothing
ACTIONHEAT Men's Large Black 5-Volt Heated Base Layer Pants AH-BLP-5V-M-L - The Home Depot
Circulating Cold Water cooling vest, Stop the Heat Before The Heat Stops You
Battery Powered Heated Pants