Do the socks come with batteries?

No. The Powersocks Heat Fusion Uni is sold without battery packs. You need a compatible Therm-ic pack, which is bought separately.

How long does the heat last?

Therm-ic rates it at up to 16 hours, but that figure depends on the battery pack and heat setting you use. Expect less on the highest setting.

Are these socks worth it over heated insoles?

If your toes are the cold part, heated socks warm the whole toe area rather than just the sole. Insoles suit people who already have good socks and want less bulk.

Can I use them for anything other than skiing?

They work for any cold-weather boot use, such as snowshoeing or winter work. The tall ski fit is designed around a ski boot.

What sizes and fit should I expect?

They are unisex and sized by shoe size, with a tight, technical fit. That close fit is what keeps the heating elements against the toes.

When is the price lowest?

Heated socks usually drop before the ski season and in late-winter clearance. The best new price was $114.00 at The Source as of November 4, 2026.

Where is the Therm-ic Powersocks Heat Fusion Uni cheapest?

At The Source, for $114.00, 59% under what the other stores charge, as of our latest check.

Where can I buy the Therm-ic Powersocks Heat Fusion Uni?

4 stores we checked sell it, including The Source, Free Flight, Utah SKI Gear, Amazon.

Therm-ic Powersocks Heat Fusion Uni

Best price now

$114.00at The SourceObserved at 11:46 AM

59% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

Visit The Source

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Our take on the Therm-ic Powersocks Heat Fusion Uni

The Therm-ic Powersocks Heat Fusion Uni is a unisex heated ski sock that warms the toes through Heat Fusion elements and runs up to 16 hours on a compatible battery pack. It is built for skiing, with a tall fit, reinforced heel and toe, and a moisture-venting knit that moves sweat away from the foot inside a boot. The battery packs are not included, so the total cost depends on which Therm-ic pack you already own or buy. The best new price is $114.00 at The Source as of November 4, 2026, with 4 stores listing it new.

What reviewers say

Owners of Therm-ic heated socks generally report warm toes on cold ski days and praise the moisture handling compared with older heated socks. The most common complaints are the extra cost of battery packs and the bulk of the pack at the top of the sock.

Pros

Noticeably warm toes on cold days
Breathable knit that keeps feet drier
Comfortable, close fit inside ski boots
Quick battery attachment

Cons

Battery packs cost extra
Pack can feel bulky against the calf
Heat output depends on which battery pack you buy

About the Therm-ic Powersocks Heat Fusion Uni

Powersocks Heat Fusion Uni 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.

Features:

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.

**Battery Packs Sold Separately**