Technical socks for extreme cold

Technical socks for extreme cold
Technical socks for extreme cold
Technical socks for extreme cold
DB4H1
En stock : Expédition sous 48h
€14.90 TTC
SIZES SOCKS CRAMPONS SOLES
  • 37/42
  • 39/45
  • 46/50

 

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Characteristics

INFO ARTICLE
Patented thermal fibers, guaranteed to keep your feet cool.
CONFORT RATING :
-50° C
MEN / WOMEN :
Men
MAIN CHARACTERISTICS :
Breathable
Increase body warmth
Keep warm
Prevents hypothermia
Strech
Thermoregulating
Vegan
SIZES :
37
38
39
40
41
42
43
44
45
46
47
48
49
50
SIZES SOCKS CRAMPONS INSOLES
46 ¤ 47 ¤ 48 ¤ 49 ¤ 50
5019041013141

TECHNICAL DESCRIPTION

This was the very first model of extreme cold thermal socks introduced on Grand Froid — and it's still one of our best-sellers.

Since 2010, numerous professionals have trusted these socks to protect their teams in extreme sub-zero conditions. They’ve been tested down to -50 °C in industrial, medical, and climatic chambers — with outstanding performance.

The result: they've been validated and continuously used for over a decade. They remain among the warmest and most reliable thermal socks available today.

The Heat Holders range has since expanded to include multiple thicknesses, warmth levels, lengths and specialist designs — including safety socks, long-leg versions, and non-slip slippers. But this Finch model remains the reference point for performance and protection.

Its secret lies in a unique Japanese thermal yarn — soft, insulating and highly breathable — that keeps feet warm without trapping excess moisture. This technology is what earned Heat Holders its reputation for cold-weather excellence.

COMPOSITION

  • 91% acrylic – warm and soft
  • 5% nylon – flexible support
  • 3% polyester – durability
  • 1% elastane – comfortable fit

BENEFITS

  • Extreme thermal protection tested to -50 °C
  • Patented thermal yarn – 7x warmer than cotton
  • Brushed inner lining traps heat close to the skin
  • Japanese yarn: soft, insulating and breathable to prevent moisture buildup
  • No compression: ideal for sensitive feet or circulation concerns
  • Still used today in industrial and medical environments
SIZING

Men’s one size: fits EU sizes 37 to 50.

Tip: For best thermal performance, wear in suitable boots. A snug fit prevents creasing and holds heat more efficiently.

WEEK DEAL: 20% OFF WHEN YOU BUY 5 PAIRS

Add 5 or more pairs to your cart to activate the discount.

The discount is applied automatically.

1 free pair for every 5 — when it’s -30 °C, that’s a no-brainer.

CARE INSTRUCTIONS

  • Machine washable up to 40 °C (manufacturer recommendation)
  • Grand Froid tip: wash at 30 °C to help prolong sock life and thermal performance
  • Do not tumble dry
  • No softener or bleach
  • Dry flat — avoid direct radiator heat

SUMMARY

Our warmest and most trusted thermal sock since 2010. Tested down to -50 °C, still used by industrial pros today.

Extreme protection, proven performance, and breathable Japanese thermal yarn — this is the Heat Holders original.

About HEAT HOLDERS

HEAT HOLDERS: Your Specialist in Extreme Cold Protection
Discover HEAT HOLDERS, an innovative brand dedicated to creating thermal clothing and accessories designed to withstand the most rigorous conditions.

Founded in the UK in 2010, HEAT HOLDERS focuses on developing products that combine comfort, thermal insulation, and durability.

Whether you are an outdoor enthusiast, a professional exposed to extreme temperatures, or simply looking for reliable winter clothing, HEAT HOLDERS has the perfect solution to guarantee you optimal cold protection and temperature protection.

Trust HEAT HOLDERS to keep you warm and comfortable, no matter the weather conditions!

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