Mjolnir Unisex Merino Blend Technical Beanie
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Mjolnir Unisex Merino Blend Technical Beanie
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Mjolnir Beanie
35% off

Mjolnir Fleece-lined Merino Technical Beanie

£29.00
Regular price £45.00 Sale price £29.00

Merino blend technical beanie with internal microfleece lining. For the hill and everywhere after.

50/50 merino-acrylic body with an anti-pill microfleece inner band. Interlock knit creates air pockets to trap heat and holds its shape wash after wash. Helmet-compatible close fit. 

Colour Black
Delivery £3.99. Next Day £9.99
Use & Highlights

When to use — Climbing, skiing, trekking, and alpinism. Close enough to wear under a helmet. Stylish enough to wear everyday.

Versus the Sinni — Where the Sinni is 100% pure merino for those who prioritise natural materials, the Mjolnir is a performance-focused blend. The acrylic content adds durability and shape retention; the microfleece lining adds a layer of warmth.

Internal microfleece band — Anti-pill fleece lining creates a warm, soft layer directly against the ears and forehead — the areas where heat loss is highest and where cold is felt first. Also prevents the knit from pilling against skin over repeated use.

Interlock knit — The construction creates small air pockets within the fabric that trap warm air — a more technical build than a standard knitted beanie, giving better insulation for the same profile.

Helmet-compatible fit — Close fit sits cleanly under a ski or climbing helmet.

Tech Specs & Care

Fabric
Body: 50% Merino wool, 50% acrylic, interlock knit
Inner band: 100% polyester anti-pill microfleece

Fit
Close fit, helmet-compatible
One size

Care
Machine wash 40°C — gentle wash
Do not tumble dry, do not iron, do not dry clean, do not bleach

  • 5 stars: 203 (90%)
  • 4 stars: 17 (8%)
  • 3 stars: 6 (3%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
S
Simon M.
Quality beanie for your Napper

Okay have something of an addiction going on with three different colours of this beanie in inventory :)

Love the fit, covers my ears in the cold. Often referred to as a big heid so jobs a good-un!

Fits under a helmet...

Love it!

N
Nick B.
Great skull cap

Reeks of quality like the jacket I bought in the Autumn. Bit pricey compared to other makes but if you can afford to buy Jottnar then do it!,,,

D
Daniel T.
Mjolnir Merino

Amazing base beanie or even on it's own. Sleek design, fits tightly on me but secure and comfortable. Great quality and looks, easily fits in your pocket, and with that all important merino wool to keep you warm and sweat free. Can't recommend enough, I also bought one for my partner.

R
Ross Y.
Great

This is my second one of these hats (lost the first one on the hills) and it is great. Fits perfectly and keeps my head cosy. Highly recommend.

D
David M.
Great gear

This is my second review for the beanie.
In fact it’s my fourth beanie.
I’ve got yellow,2red,and a blue.
That’s how good they are.
I even sleep with it on when wild camping on the mountains in mid winter in the snow and -6 temperatures.
The product is well made and great fitting.
You won’t be disappointed with this gear.

P
Paul W.
Quality

I bought the Mjolinir beanie a couple of weeks ago and I have had some great snow mountain days since then, great addition to my kit, love the fit, quality and warmth it provides without being to hot. Highly recommended.

S
StuartW458
Didn’t take it off once.

The most comfortable hat I have ever worn. Arrived in time for me to wear it on Snowdon a week ago. Wore it for 8 hours and never took it off once. Extremely comfortable to wear. Even when I did get a bit warm, I didn’t feel the need to adjust it. Will be buying another shortly for my wife. Great hat Jöttnar.

S
Sean S.
The usual excellent quality.

High quality materials and best bit is its not itchy!
Used most days on the hill.

A
Adam T.
Mjolnar

Great beanie hat great quality very warm too top quality bit of gear

s
sean h.
Meh.

Small and tight fitting.
Barely covers my ears, have to stretch it across your head to try getting coverage.
Wouldnt reccomend or buy again.

K
Karen B.
Delivery and customer care

The staff could not be more helpful, I ordered my 2nd jacket jn 2 years. The jacket I ordered was too large I was terrified of the return procedure but the staff were very helpful and even changed the delivery address to my office. Love my jackets and will be buying more products.

A
Adrian C.
Cracking beanie

Excellent comfortable and really warm hat in very cold temperatures. Great value on sale too

a
andrew m.
Good quality, perfect for the windy colder days

Very good quality, tight fit with stretch but not too tight. Nice logo and branding detail and very pleased.

M
Martin I.
Happy hiker

My Mjolnir beanie doesn’t get 5 stars because it was a freebie. No! it’s because it’s possibly the most comfortable and stylish beanie I’ve ever owned. I’ve got a small napper and thought it would be humongous. It isn’t, fits a treat. Thanks Jottnar.

O
Oliver H.
Awesome beanie. Wife loves it too!!

Soft, warm and well fitting.

W
WM
Good balance of warmth and weight

I prefer this over the Skal because it fits more fully over the head, but the tradeoff is it's ticker. I still keep the Skal in my bag for a lighter layer under a hood. Great for use on it's own - soft and very warm.

M
Max B.
Very good hat

Very good

D
David D.
Beanie review

Love the material and the look, especially the inner lining around the inside which prevents any itching. The only issue I have it’s a tad tight, this is in one size fits all. Maybe I’ve just got a big head, but didn’t think so. Hoping it will stretch.

S
Stephen K.
Even the colours warm!

Soft and warm punches well above its weight

K
Ken M.
Beanie Hat

Just perfect for cold days Golfing, Hiking and other outside stuff.

E
E P.
Great quality clothing

Great quality clothing with a great fit.. Definitely recommended 👍🏾👍🏾

S
Sam M.
Great fit, excellent comfort and warmth

Loved the comfy feeling, well finished in a nice colour. Absolutely nothing you could do to improve this product.

D
Daniel A.
perfect beanie

Great fit, warm without being sweaty, well made.

P
P A.H.
Warmth and comfort

Love this beanie (eclipse) - warmth and comfort and overall fit make this an excellent purchase. Fast responsive delivery

g
garry
Beanie

Love this got two of these great quality lovely fit and really warm .Going to have another one.

M
Matt
Perfect!

A simple piece of gear to design-you would think-but so many brands get it wrong. Not Jottnar. The Mjolnir provides just the right amount of insulation, fit is perfect and a nice choice of muted tones that fit nicely with the rest of their clothing range. Keep doing what you do. It is much appreciated by those who love being in the mountains.

C
Chris W.
Warm and soft

I wear a lot of hats because I’m bald. I need them to be warm and breathable for when I run and also warm when wet. This hat is great. Fits all my needs perfectly and looks good too

S
Steve H.
Exactly what I was looking for.

Really happy with this purchase. It fits well and is a really good quality beanie. Most importantly, it's not bulky and so fits well underneath a climbing helmet. It also looks good and I really like the style and branding. Exactly what I was looking for to stay warm when climbing in the Peaks during the winter months.

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