THERM-IC Powersocks Heat Fusion Uni Heated Socks

"Powersocks Heat Fusion Uni ND are unisex heated ski socks. Technical, soft and breathable, they efficiently wick away moisture thanks to their specific micro-channel construction. These heated ski socks also provide maximum comfort in the sensitive areas of the foot, namely the shin, calf and instep.
Equipped with Moisture-Vent Technology, this ski sock efficiently wicks away moisture from the arch of the foot. Thanks to the macro-channels around the foot, moisture is guided away from the ski boot, making it easier for your foot to breathe.
The Powersocks Heat Fusion offer a soft and pleasant warmth around the toes and provide up to 16 hours of warmth, depending on the type of battery used.
The socks are sold without batteries. Find all compatible batteries by clicking here. Three heat levels are available, to adapt the heat to your needs.
List of compatible batteries :

S-Pack 1400B (Bluetooth)
S-Pack 1200
S-Pack 700B (Bluetooth)

S-Pack 700

Technical specifications :

Breathable socks with tight fit
Quick and easy attachment of batteries with snaps.
Heel and toe reinforcements
Heat Fusion technology: for diffusion and heating all around the toes.
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