Put Your USB Battery Packs to Use This Winter With a Heated Base Layer
by Jillian Lucas on Deals, shared by Shep McAllister from on (#2ZEFW)
Warmth on demand isn't just science fiction anymore. Polar Seal clothes give you the ability to add even more warmth to your winter layers with built-in warming elements, powered by any standard USB battery pack. The two heating zones and three heating levels are controlled by the waterproof buttons on your wrist. "