Heated Socks
These heated socks generated the greatest warmth and were the most comfortable to wear in tests performed by the Hammacher Schlemmer Institute.
The socks reached a maximum temperature of 131º F, easily surpassing the 122º F generated by the closest competitor. A rechargeable lithium-ion battery and ultra-thin heating element provide up to 10 hours of warmth on the lowest of four heat settings, compared with 7 1/2 hours of warmth and limited heat control found on lesser models.
