Specifications︰ 1. Rated voltage: 4.5V
2. Comes with battery compartment, ordinary or rechargeable batteries can be used.


Measurements

Men's shoe size (US)
X-Small 5-6 1/2
Small 7-8 1/2
Medium 9-10 1/2
Large 11-13

Womens' shoe size (US)
X-Small 6-8
Small 8 1/2-10
Medium 10 1/2-12

Advantages︰ Warm your toes in these cozy heated socks. Recessed channels built into the sock make the heating unit nearly invisible. The battery pack is located on the outside calf in a battery pouch made of durable Proplex. Battery won't interfere with riding and lasts 6-7 hours. Low profile sock makes it easier to wear with today's lightweight boots. Hand wash and line dry. Comes in a gray/black color.