Comment “LINK” to check it out Cold weather has got nothing on this vest! This ARRIS heated vest runs on a 7.4V battery and heats your core fast with seven heating zones across the chest, back, and waist. Five heat levels mean you control the warmth, not the weather. The adjustable sizing is the secret weapon. I size it down to wear under any jacket or size it up to the largest setting so Waffles fits inside and stays toasty on chilly walks 😁 Basically a heated kangaroo pouch for a spoiled king