Knee-high, with the warmth in the forefoot
These are rib-knit knee socks. The heating zone sits in the forefoot, the battery high up in a pocket at the cuff – right where your boot ends. A short cable connects the two, so nothing presses inside the boot. The batteries are included.
- Battery pair included – 2 × 4,000 mAh, 3.7 V, with USB charging cable
- Heating zone in the forefoot, battery pocket at the top cuff
- 3 levels – about 95, 113 and 131 °F (35, 45 and 55 °C)
- Up to 10 hours
- Knee-high – reaches above the shaft of ski, winter and rubber boots
- One size for US men's 5–12 / women's 6.5–13.5 (UK 4–11, EU 37–46), in gray, black or black-orange
For long hours in the cold
The break on a hike, the walk with the dog, a day in the barn or on a building site: when your feet hardly move, switch up a level.
Details and what's in the box
- Heating: zone in the forefoot, 3 levels
- Batteries: 2 × 4,000 mAh, 3.7 V, charge via USB
- Run time: up to 10 hours
- Cut: knee-high, rib knit
- Care: remove the batteries, hand wash in lukewarm water and air dry; reconnect only when everything is completely dry
- In the box: 1 pair of knee socks, 2 batteries, 1 USB charging cable
Frequently asked questions
Are the batteries included?
Yes. Two 4,000 mAh batteries and a USB charging cable are included in the price – one battery per sock.
Can I use the EmberThreads 5,000 mAh power bank?
No. The knee socks run on 3.7 V and need the included battery pair. The 5,000 mAh power bank is made for the vest, jacket, hoodie and touchscreen gloves.
How do the knee socks differ from the socks?
Both run on the same battery pair. The knee socks are knee-high and rib-knit, with the heating zone in the forefoot. The socks are patterned, made from a cotton blend, with a heating zone over the toes and forefoot.
How do I wash the socks?
Remove the batteries, hand wash in lukewarm water and let them air dry. Reconnect only when everything is completely dry.
Shipping is free on every order. Orders usually leave within 1 to 3 business days, and you get a tracking number by email as soon as yours ships.
- Free shipping, every time
- 14 days to return it for a full refund of the item price
- Damaged or wrong item? We make it right at no cost
Read the full shipping policy and refund policy.
Heated Knee-High Socks
- Free shipping on every order
- 14 day money back guarantee
- Real people reply within 24 hours
- Safe, encrypted checkout
Taxes included · Ships free
Made for your days outside
Warmth for every cold weather routine
Built for the everyday hours spent outside in wind, damp air and frost, not just the occasional trip.
Common questions
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Thin heating panels are sewn into each piece and powered by a battery. Depending on the product, that is a pocket power bank, a pair of batteries or a built in cell. Turn it on, pick a level and you are set.
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Yes. Every heated product ships with the battery it needs, whether that is a power bank, a battery pair or a built in cell. There is nothing extra to buy, and the power banks can also charge your phone.
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On the lowest setting with the included battery, the vest lasts about eight hours and the gloves five to six. Each product page lists the run time for every level. Bring a spare battery for longer days.
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Each product page and package includes care instructions. In general, disconnect the battery and cable first and always let it air dry.
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Shipping is always free. You will see the delivery estimate for your country at checkout and on our shipping page.
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You have 14 days to send it back. Email support@emberthreadsapparel.store and we will help you set up the return.
Ready when you are
Order today and stay warm all season
- Ships free on every order
- 14 day money back guarantee
- Safe, encrypted checkout
$149.90
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