New with tags, Polar Seal 1/4 zip pullover blue, Women size S

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. Designed to be super lightweight, flexible, and breathable, POLAR SEAL tops can give you heat for up to 8 hours, which means you can go a full day in the cold without feeling chilly.  You can activate heating in your lower back and upper back separately or simultaneously to fit your needs and comfort. Our color coded heating zone button allows you to adjust zone settings easily.  POLAR SEAL is compatible with standard USB power banks. This gives you the freedom to choose the power bank that suits your needs and taste, or use USB power banks you already might own.