Polar Seal Heated Zip Top Thermal Shockproof Water Resistant Black S Fleece

Pristine condition. Sold out Size Small Measurement taken laying flat Pit to pit: 17.25 in Waist: 15 in Length: 25.5 in The heated zip top features a large upper back heater and a large lower back heater which can be activated on their own or separately. Works with standard 2A USB-A power bank (not provided). You can activate heating in your lower back and upper back separately or simultaneously. These heating elements are built into the textile and are breathable and flexible. POLAR SEAL's color coded temperature control buttons allow you to make adjustments in seconds. These heat control buttons are shockproof and water resistant. They also work with gloves.