Features:

√ The strategically placed heating elements use far-infrared fibers to obtain the best heating performance. It can stimulate blood circulation in your feet and is very suitable for people with arthritis feet, long-term cold and stiff joints

√ Heating parts: five fingers, instep, sole

√ This heating sock uses 7.4V 2200mAH rechargeable battery, charging faster than other products.

√ The temperature control button can easily access 3 heating settings

√ Used for winter outdoor sports, such as skiing, hiking, hunting, snow shoveling, fishing, cycling, cycling, etc.

SPECIFICATIONS

Three gears to control temperature

√ Red light (high temperature, about 122~131 F ): keep warm about 3.5~4 hours
√ White light (medium temperature, about 113~122 F): keep warm about 5~6 hours
√ Blue light (low temperature, about 100~113 F): keep warm about 8~10 hours

Material: 55% Coolmax, 25% Elastio, 20% spandex
Size: S / XL

Adjust the temperature gear

Heating time: 2.5-8 hours
Heating temperature: 40-65 ° C

Heating element: far infrared heating element
Suitable for: Women, Men

Package includes: 1 pair of socks, 1 set of 7.4V,  2200MAH rechargeable batteries, a box, a manual, a portable

How to choose a size:

If your shoes are in 35~38 size, we recommend choosing S size;
if your shoes are in 39~42 size, we recommend choosing M size;
if your shoes are 43~46 size, we recommend choosing L size ;
If your shoes are in 47~48 size, we recommend choosing XL size;

Notice: There is an error of 1~3cm in the measurement. It is recommended to choose the size according to the foot length of the size chart and the height of the socks