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Heimdall Men’s Extrafine Merino Baselayer
£149.00
New Release
Heimdall
£149.00

Men’s Extrafine Merino Baselayer

Named for the all-seeing sentry of Norse legend, Heimdall is your next-to-skin guardian against the cold. Crafted from one of the world’s finest merino yarns, this season’s release is warmer, softer, and more technically advanced than ever. Built for deep powder skiing, off-piste adventures, mountaineering, and expedition use.

A new birdseye mesh knit enhances comfort and moisture management, while flatlock seams ensure all-day, itch-free wear and exceptional warmth, even when wet. Naturally odour-resistant, crease-resistant and antimicrobial, it keeps you fresher for longer on multi-day trips.  

Our 19.5-micron extrafine merino offers an exquisitely soft, silky feel and resilient shape retention. A fully-fashioned, zero-waste build lays seams smoother against the skin for luxurious comfort and a polished finish. 
 
Core-spun yarn technology adds stretch, strength, and faster drying. Body-mapped pointelle panels boost airflow through sides and underarms. A double-layered rib collar blocks wind, while ribbed cuffs seal in warmth. Finished with a reverse coil, auto-lock YKK® quarter zip. 

Extremely time-intensive to craft and uncompromisingly functional, the luxury in unmistakable. Wear it solo in milder weather or as a base for winter extremes.

Reviews displayed include the earlier editions of the Heimdall. We’ve kept them here to showcase the Heimdall's legacy while introducing this new version.

Read Technical Specification
Sizing Chart
Select Colour/Size

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Design & Construction

Usage

Deep Powder Skiing, Snowboarding, Mountaineering & Expedition

Fabric

90% extrafine merino wool, 10% polyester

19.5 micron

Uses core spun technology (Core spun polyester)

Non-mulesed merino wool

Uses PBT polyester, providing enhanced durability, stretch, quick drying properties and comfort

Fit

Athletic

Protective high collar

Drop back hem

Logo

Woven label at hem

Colours

Phyllite, Slate Marl

Size range

S, M, L, XL

Features & Components

Zips

YKK® quarter-zip for rapid ventilation

Seams

Flatlocked seams throughout

Comfort Features

Odour-resistant, sweat-wicking, anti-itch merino wool blend

Body-mapped pointelle ventilation side and underarm panelling

Rib knit cuffs for a close fit and added warmth

Technical Data

Weight

260g (men’s medium)

Wash Care Instructions

Machine wash at 30°c - gentle wash

Dry flat

Do not dry clean

Cool iron

Do not tumble dry

Do Not Bleach

Customer Reviews

Based on 32 reviews
97%
(31)
0%
(0)
3%
(1)
0%
(0)
0%
(0)
D
Dave P.P.
Great quality

Great quality base layer, very warm. beautifully made with some lovely details, could be worn as a top it’s so stylish.

C
Craig f.
Top Quality

Just received this to add to my Jottnar Collection , I have to say first impressions it’s absolute yet top notch quality , the fit is super and material is fantastic !!

G
Ged R.
Cracking piece of kit

Outstanding design and materials make this a cracking piece of kit.

D
Dyfed P.
Great top

So Ive been waiting like Pablo for about a year for the Henning LX to come back in stock to no avail. Saw this and loving merino decided to get one in oat. Such a good top, comfortable, warm and looks great. Far better than my Fjallraven merino if you want an idea of the quality. Straight away ordered another in Blue, with the 30% off code that came with the first one it was a no Brainer. Jottnar definetly my favourite outdoor brand. The quality is unsurpassed.

M
Martin I.
Happy hiker

I’m really pleased with my Marino Heimdall base layer. Really soft and comfortable piece of kit which I’ve worn in the fells. Great fit, not too tight and feels great next to the skin.

Customer Reviews

Based on 32 reviews
97%
(31)
0%
(0)
3%
(1)
0%
(0)
0%
(0)
D
Dave P.P.
Great quality

Great quality base layer, very warm. beautifully made with some lovely details, could be worn as a top it’s so stylish.

C
Craig f.
Top Quality

Just received this to add to my Jottnar Collection , I have to say first impressions it’s absolute yet top notch quality , the fit is super and material is fantastic !!

G
Ged R.
Cracking piece of kit

Outstanding design and materials make this a cracking piece of kit.

D
Dyfed P.
Great top

So Ive been waiting like Pablo for about a year for the Henning LX to come back in stock to no avail. Saw this and loving merino decided to get one in oat. Such a good top, comfortable, warm and looks great. Far better than my Fjallraven merino if you want an idea of the quality. Straight away ordered another in Blue, with the 30% off code that came with the first one it was a no Brainer. Jottnar definetly my favourite outdoor brand. The quality is unsurpassed.

M
Martin I.
Happy hiker

I’m really pleased with my Marino Heimdall base layer. Really soft and comfortable piece of kit which I’ve worn in the fells. Great fit, not too tight and feels great next to the skin.

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