Men's 100% Merino Wool Thermal Shirt 4699 Blaklader

Reference BK4699

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€123.90 TTC

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Tarif dégressif dès 5 pièces 117,71 € · dès 10 115,23 €

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123,90 €	117,71 €	115,23 €	111,51 €	109,03 €

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SUMMARY

This cosy thermal top with a feminine cut keeps the body warm and dry in cold weather. The two-tone, merino wool thermal top provides outstanding protection from the cold and its moisture-wicking properties keep you warm and dry. Recommended for temperatures between -20°C and -35°C.

TECHNICAL DESCRIPTION

Men's 100 % merino wool zip-neck thermal shirt Blaklader 4699

Layer Base layer

Fabric 100 % merino · 260 g/m²

Comfort Down to −35 °C*

Sizes XS to 4XL

Blaklader Reference 4699 · Designed in Sweden

Men's merino wool thermal shirt — base layer for extreme cold

The Blaklader 4699 men's thermal shirt is a base-layer underwear in 100 % merino wool (260 g/m²), built for men exposed to intense cold in professional or outdoor environments. Designed in Sweden, it follows the Scandinavian thermal tradition: natural breathability, fibre-based thermoregulation, odour resistance during long wear. Zip neck to fine-tune venting against effort intensity. Available in sizes XS to 4XL, comfort down to −35 °C*.

Grand-Froid expert's view

A recognised technical classic: 100 % merino wool 260 g/m² that holds neither moisture nor odours. The zip neck really matters once effort ramps up — you vent without undressing. Wear it on bare skin, or as a base layer under fleece and parka. For the full set, pair it with the Blaklader 1845 merino bottoms: same fibre, same weight.

Men's merino thermal shirt Blaklader 4699 - Base layer extreme cold -35°C

Who is it for?

A versatile base layer for intense cold, from static workstation to committed outdoor.

Cold-chain logistics: negative-temperature warehouses, cold-room order picking, forklift drivers in refrigerated environments
Winter construction sites: civil engineering, outdoor maintenance, mountain work, long site management
Committed outdoor: winter hiking, cross-country skiing, bivouac, long observation in cold environments
Cold-sensitive profiles: Raynaud's phenomenon, poor peripheral circulation, cold extremities
Daily wear: invisible base layer under city clothing in deep cold, office/outdoor transition
Pair it with the Blaklader 1845 merino bottoms for a complete base-layer set (top + bottom, same 260 g/m² weight)

Technical specifications

Fabric: 100 % merino wool, weight 260 g/m²
Cut: fitted, base-layer close to the body
Neck: zipped, zip length allows active venting
Sleeves: long, ribbed cuffs
Thermal comfort: down to −35 °C* within a layered system
Natural properties: moisture regulation, odour resistance during long wear, passive insulation
Origin: designed in Sweden
Manufacturer reference: Blaklader 4699

Composition

100 % merino wool — natural thermoregulating fibre, fine and non-itchy
Weight: 260 g/m² (substantial winter weight, vs 180–200 g/m² for a mid-season merino)

Size guide

Fitted men's cut, base-layer. Take your usual chest size.

Size	FR size
XS	38
S	40
M	42
L	44
XL	46
2XL	48
3XL	50
4XL	52

Tolerance ± 1 size depending on morphology. If hesitating between two sizes for base-layer wear, go for the tighter one to favour skin contact.

Care & Durability

Washing: machine wool cycle, 30 °C maximum, wool detergent
Drying: flat, air-dry — never tumble-dry
Avoid: fabric softener, bleach, hard spin, direct radiator
Ironing: gentle wool setting if needed
Good to know: merino wool doesn't need frequent washing — airing it out is often enough

Return or exchange — 30 days

You have 30 days after receipt to request a return or exchange on this item.

Why choose the Blaklader 4699 merino shirt?

Because merino wool is, to date, the most effective fibre to manage both heat and perspiration in cold environments. Merino breathes, thermoregulates, dries fast, and doesn't absorb odours — an underlayer you can wear several days in a row without discomfort. The 260 g/m² weight places this shirt in the substantial winter category (between 200 g/m² mid-season and 320 g/m² very-cold).

The three-layer system:

Layer 1 — base (the role of this shirt): against the skin. Captures heat, wicks moisture outward.
Layer 2 — mid-layer: fleece, thermal sweatshirt, body warmer. Insulates and retains warm air from layer 1.
Layer 3 — outer: parka, jacket, work coat. Blocks wind, rain and snow.

For a "full system" effect on layer 1, pair the 4699 shirt with the Blaklader 1845 merino bottoms — same fibre, same weight, same thermal range.

* Indicative temperature, varies with activity, body type, and the layering system worn.