Men's Long ORIGINAL Thermal Socks · Boot socks −50 °C · Heat Holders

Reference DBBSMHH06H1

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€14.90 TTC

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39/45

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SUMMARY

Heat Holders ORIGINAL men's long thermal socks bring the range's maximum warmth (TOG 2.34, 7× warmer than cotton) in a knee-high boot version. The leg covers the calf and removes the cold bridge. Ideal for rain, snow, hunting, work. Comfort down to −50 °C. Men sizes UK 6-14.

TECHNICAL DESCRIPTION

Men's Long Thermal Socks Heat Holders – ORIGINAL

Comfort Down to −50 °C

TOG rating 2.34 · max

Height Long / knee-high

UK sizes 6 to 14

Heat Holders ORIGINAL · The extreme cold reference

The world's warmest long sock — built for boots

Heat Holders ORIGINAL men's long thermal socks bring the maximum warmth of the official ORIGINAL Socks Heat Holders range in a knee-high version that covers the calf — ideal for boots. 7 times warmer than a regular cotton sock. Comfort down to −50 °C, TOG rating 2.34 — the highest ever measured on a sock under British Standard BS 4745. Worth trying if your feet get cold easily. One men's size, fits UK 6 to 14.

Grand-Froid Expert Review

The long version is a game-changer in boots: the knee-high leg covers the calf, removes the cold bridge at the boot/trouser junction and stays in place all day. This is the sock for wellington boots, hunting, snow or work boots. The warmth and comfort effect is immediate.

BUNDLE DEAL — 5 pairs or more −20 %

Order 5 pairs or more and get −20 % off the whole order. Ideal for equipping the whole winter or several members of the family.

Discount applied directly in your cart.

Who are they for?

Inside boots: rain, snow, hunting, work
To cover the calf and remove the cold bridge
Long outdoor activities in extreme cold
For feet and legs that get cold easily

Technical specifications

Thermal comfort down to −50 °C — ORIGINAL level, the warmest in the Heat Holders range
TOG rating 2.34 — certified under British Standard BS 4745
Soft Brushed Inner: densely brushed lining, immediate cosy feel
Gentle Grip Welt: soft cuff that holds in place without compressing the ankle
Height: long / knee-high (covers the calf)
Cashmere-like feel: premium acrylic yarn known for its softness

Composition

90 % acrylic — high-performance insulating yarn with renowned softness
8 % polyamide — strength and wash durability
2 % elastane — hold and dynamic comfort

Sizing guide

⚠️ Important — The reverse effect of foot compression

The ORIGINAL sock is thick. Worn inside a snug shoe, it compresses the foot and restricts blood circulation — producing the opposite effect: cold feet. If your shoes are a close fit, go half a size up for winter, or choose the LITE range (TOG 1.6) or ULTRA LITE (TOG 1.0).

Measuring your foot length: stand with heel against a wall, foot flat on a sheet of paper. Mark the tip of the longest toe. Measure the distance wall ↔ mark in centimetres.

UK size	EU size	Foot length
6 to 11	39 to 45	24.5 cm to 28 cm
12 to 14	46 to 50	28.5 cm to 31 cm

Between two sizes, go up: a slightly larger sock keeps its thermal performance, a tight one loses it.

Care & Durability

Wash: machine wash at 30 °C maximum
Drying: air drying preferable, flat or on a line
Tumble dry: tolerated on a gentle low-heat cycle
Avoid: fabric softener, bleach, drying on a hot radiator
Ironing: not recommended on brushed fibres

For those with poor circulation or Raynaud's phenomenon

Keeping the extremities warm is one of the most widely shared pieces of advice for people living with Raynaud's phenomenon — episodes where the fingers or toes turn white, then blue, then tingle in response to cold or stress. More broadly, anyone with blood circulation sensitive to low temperatures can benefit.

The Heat Holders ORIGINAL sock — the warmest in the range — is designed to limit the feet's exposure to cold and support thermal comfort throughout the day. Heat Holders is the official partner of Scleroderma & Raynaud's UK (SRUK), the British charity dedicated to awareness and support for those affected.

⚠️ Important notice: these socks provide thermal comfort but do not replace medical care. Please consult your doctor for any diagnosis or treatment tailored to your situation.

Returns & exchanges — 30 days

You have 30 days from delivery to request a return or exchange on this item.

Why choose Heat Holders ORIGINAL socks?

Not all thermal socks are equal. The ORIGINAL long sock takes the warmest version of the Heat Holders range — thick, densely brushed inside, comfort down to −50 °C — in a knee-high leg that covers the calf. It's the sock for boots: rain, snow, hunting, work. The height removes the cold bridge at the boot/trouser junction, where cold creeps in most.

TOG — understanding sock warmth:

ORIGINAL · TOG 2.34 — maximum warmth: extreme cold, long exposure, lined boots.
LITE · TOG 1.6 — everyday warmth: ideal for standard winter days, in walking or city shoes.
ULTRA LITE · TOG 1.0 — invisible warmth: designed for slim-fit footwear, dress shoes, urban use.

TOG measures the thermal resistance of fabric: the higher the rating, the more heat is retained. A basic cotton sock sits at 0.33.