Thorne Men’s All-Mountain Down Jacket
man:Thorne Men’s Boreas All-Mountain Down Jacket
man:Thorne Men’s Black All-Mountain Down Jacket
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Thorne Men’s All-Mountain Down Jacket
man:Thorne Men’s Boreas All-Mountain Down Jacket
man:Thorne Men’s Black All-Mountain Down Jacket
tech:
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Thorne Down Jacket

£299.00
Regular price £299.00

Versatile goose down jacket providing warmth and toughness for mountain and everyday use.

750 Fill Power DownTek™ hydrophobic goose down in a 90/10 down/feather ratio. Outer woven from 100% recycled OceanCycle Pertex® Quantum — a tough 50-denier micro ripstop built to take daily wear as well as mountain conditions. PFC-free and PFAS-free DWR finish. Synthetic insulation at shoulders, cuffs, collar and hood. Stuff sack included. Responsible Down Standard compliant. How the Thorne differs from the Fenrir — and why the tougher outer matters — is in the details below.

Colour Boreas
Size Small

Sizing charts

The measurements in the charts refer to your body measurements. Measure your body as described and then choose the corresponding product size.

Men's Sizing

Small
EUR 46 - 50
Medium
EUR 50 - 52
Large
EUR 52 - 54
X Large
EUR 54 - 56
Chest 96 - 102 cm
38 - 40 in.
102 - 106 cm
40 - 42 in.
106 - 111 cm
42 - 44 in.
111 - 116 cm
44 - 46 in.
Waist 76 - 81 cm
30 - 32 in.
81 - 86 cm
32 - 34 in.
86 - 91 cm
34 - 36 in.
91 - 96 cm
36 - 38 in.
Inside Leg 80 cm
31.5 in.
81 cm
31.9 in.
82 cm
32.2 in.
83 cm
32.7 in.



Women's Sizing

X Small
UK 6 - 8
EUR 34 - 36
US 2 - 4
Small
UK 10 - 12
EUR 36 - 38
US 6 - 8
Medium
UK 12 - 14
EUR 40 - 42
US 8 - 10
Large
UK 14 - 16
EUR 42 - 44
US 10 - 12
Bust 82 - 86.5 cm
32 - 34 in.
86.5 - 91.5 cm
34 - 36 in.
91.5 - 96.5 cm
36 - 38 in.
96.5 - 101.5 cm
38 - 40 in.
Waist 64 - 68.5 cm
25 - 27 in.
68.5 - 73 cm
27 - 29 in.
73 - 77.5 cm
29 - 31 in.
77.5 - 82.5 cm
31 - 33 in.
Low Hip 88 - 92.5 cm
34.5 - 36.5 in.
92.5 - 97.5 cm
36.5 - 38.5 in.
97.5 - 102.5 cm
38.5 - 40.5 in.
102.5 - 107.5 cm
40.5 - 42.5 in.
Inside Leg 77 cm
30.3 in.
78 cm
30.7 in.
79 cm
31.1 in.
80 cm
31.5 in.


How to measure

 

Measuring guide

Chest/Bust

With the tape under your armpit, measure across fullest part and across shoulder blades.

Waist

Measure around natural waistline at the narrowest part.

Low Hip

Measure around the widest part of the hip bones.

Inside leg

In a standing position, measure from top of inside leg at crotch to ankle bone.

Delivery £3.99. Next Day £9.99
Use & Highlights

When to wear. Trekking, mountaineering and cold-weather commuting; a daily driver that moves between the mountain and the city without looking out of place in either. The tougher, more versatile alternative to the Fenrir for those who want one jacket that works everywhere.

Versus the Fenrir. Where the Fenrir prioritises ultimate warmth-to-weight, the Thorne is built to take more punishment; the 50D OceanCycle Pertex® Quantum outer is tougher and more resistant to abrasion from daily use

Synthetic reinforcement. 140g/m² synthetic fill at the shoulders, cuffs, collar and hood — a heavier weighting than the Fenrir — gives robust protection in the moisture zones most likely to compromise down performance in sustained cold and wet

Hood. Down-filled and elasticated at the face opening for a close fit without adjustment; the rear cinch locks it in place in wind; functional on the hill and low-profile enough to wear in town

Pockets. Front facing insulation in the hand warmer pockets keep hands warm without gloves; the external chest pocket is a practical addition for a phone, card or keys on the commute or any day out that doesn’t need a pack

OceanCycle. The Pertex® Quantum outer is woven from 100% recycled OceanCycle polyester; like NetPlus® on the Fenrir, this is reclaimed ocean-bound plastic rather than standard recycled material

Ethics. Responsible Down Standard compliant; hydrophobic treatment uses bluesign®-approved clean chemistry

Tech Specs & Care

Outer fabric
Pertex® Quantum 50D micro ripstop
100% recycled OceanCycle polyester
PFC-free and PFAS-free DWR finish

Fill
750 Fill Power DownTek™ hydrophobic goose down
90/10 down/feather ratio
Synthetic reinforcement: 140g/m² synthetic insulation at shoulders, cuffs, collar and hood

Hood
Down-filled, elasticated face opening
Rear drawcord cinch

Cuffs & hem
Stretch-bound cuffs
Anti-snag hem adjusters

Pockets
2 × insulated hand warmer pockets
1 × external chest pocket
1 × internal zipped valuables pocket

Weight & fit
540g (men’s medium)
Regular fit

Ethics and suststaianbility
Responsible Down Standard compliant
bluesign®-approved chemistry

Care
Machine wash 30°C — gentle wash
Tumble dry cool
Do not dry clean, do not iron, do not bleach

  • 5 stars: 150 (97%)
  • 4 stars: 4 (3%)
  • 3 stars: 1 (1%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
S
Steve J.
Exceptional

I’ve toyed with buying this jacket for a couple of years now but so glad I’ve finally taken the plunge! WOW! The moment you put it on you can feel the high quality.
It’s so warm with just a t-shirt underneath in late September. I’m really looking forward to seeing how it performs throughout winter. The masses can keep their ‘designer’ jackets, I’ve got the real deal!

J
John G.
Top quality jacket

Having lived most of my life in scruffy Barbour jackets, I finally plonked for a proper outdoor jacket, recommended by a family member who has a Thorne.
It’s actually going to be a while getting used to wearing something so light and warm, so far it’s amazing to not need anything more underneath that a light shirt or t-shirt. Brilliant and worth every penny. Bought direct.

P
Paul H.
The awesome Thorne Jacket

I have to say I’m extremely impressed with my Thorne by Jottnar. Compared to the competition at this price bracket the quality is amazing.
The fit is correct, stows await into its bag neatly and looks really top draw.
I will be buying more Jottnar kit in the future.

C
Clive H.
As described excellent if you buy you won't be disappointed

Title says it all I'll definitely be buying again

C
Colin E.
Great fit, nice and warm. A few negatives though.

As per title the jacket fits well and keeps me nice and warm. Very lightweight which is great especially if packing it up to carry. Negatives are that its not in the least showerproof. It very easily soaks water in. The other drawback is that because it has a down lining it constantly seems to shed feathers which is noticeable on dark T-shirts and jumpers. Got it at a sale price so can overlook the negatives slightly.

D
D.J.D.K.
Comfortable, favourite jacket!

Bought for colder weather to pair with a t-shirt under. Has quickly become my favourite jacket. Highly recommend.

B
Brian T.
Jottnar Thorne Jacket

I have a Thorme down jacket and so far I've been really happy with it. Today I got caught out in the rain and was exposed for about 10-15 minutes of persistent but not overly heavy rain. I was a bit surprised to find the pockets getting quite wet and the elbow leaking and getting my arm wet within a few minutes. Now, I know this is not a waterproof jacket but I was expecting a little more resilience from the Pertex Quantum outer fabric. That being said, I am still very happy with the jacket as it performed flawlessly and was so warm and amazing on a recent ski trip with temps falling well below freezing.

A
Andrew P.
Quality jacket

Quality jacket. Warm and windproof without being too bulky. Very comfortable with a good fit and also appears to shed a light shower.

A
Aaron Y.
My 2nd Thorne

I’ve bought a few Jottnar jackets now, for myself and family. Just bought my second Thorne for myself. Beautifully fitting, and incredibly comfortable and warm in most conditions. I highly recommend it. Only suggestion for improvement would be a slightly tougher outer material, as my old Thorne didn’t survive our dogs jumping up!

D
Dave H.
Solid Jacket

Bought a new one of these to replace my very old one and the quality of the new design is a big improvement over previous versions (the old ones were already excellent). Really good fabrics used and feels very robust. I like that the company is a small British company, started and owned by veterans, and is relatively local to me.

A
Andy H.
Superb Jacket

At 5ft 10ins and 82kg I bought the medium. It’s is a great fit with room for a layer or two, but fits well with just a t-shirt on. Very comfy & warm. The hood is particularly well designed. Stuffs into a very small accompanying stuff sack. Really pleased with this purchase.

P
Paul F.
Great construction and warmth

Both lightweight and packable, and also very warm. Has been tested in Scottish winter so far and holding up very well for both technical and everyday wearing. Great colour too

D
Davie
Deserves more than a 5 star review

I’ve already reviewed my Thorne,a few reviews down, received an email today about Jottnar Down, so Ive came back to update my previous review and ask the guys at Jottner about down pants, I’m just home from 10 days in the cairngorms again, each day on the summits of Cairn Toul,the Devils Point, Ben Macdui etc,, some of the severest conditions I’ve encountered in the Uk, -12 degrees and lower in blizzard conditions, again the Thorne performance was exceptional, a base layer, my Thorne and lhotse hard shell and I was quite comfortable in some serious conditions,,, to the Jottner Team, have yous ever thought of Jottner Down Pants, the same quality as your jackets ? For the conditions I mentioned above it’s the only thing missing from my kit bag

G
Gav.T
Hesitant !! Don’t be go for it ..

I was hesitant to but the Thorne jacket but !! It’s better than I expected.. you can tell these guys have put the hours in figuring out what materials to use, Everything feels quality .. I had two jackets in mind this one and one other brand beginning with R@& I’m pleased I went with this one my friend has the other one and this brand feels better quality no doubts about it. Will definitely be back to buy more Jottnar products .

P
Paul C.
Thorne In -3 for two weeks

i already owned a Thorsen which to all intents and purposes is a hoodless Thorne , but decided i wanted the hooded version. Great warmth and very happy with the jacket - one minor niggle was that a bottom hem adjuster came loose. Jottnar offered to fix it but in truth with the weather of late i was happy to put up with it, and keep the jacket which based on its been -3, more often than not in the last couple of weeks. was fine by me. Just had a single base layer on underneath and more than snug.

M
Mr G.W.
Review from an ancient Northman.

Just bought my first Jöttnar jacket, Thorne, and I couldn't be happier. Fits perfectly, looks and feels quality and most importantly keeps me very warm, unlike my previous favourite brand I don't have to wear a mid - layer or wear a neck tube as it zips up snuggly to my chin. I also love the back story of the brand creators and the Norse references.
I've previously been a big fan of a rival brand from Sheffield and own various editions of all four layers but will now be switching to your brand and look forward to doing the same with you.
I'm not a soldier, an athlete or a mountaineer I'm a man in his 60's who walks every day in the Yorkshire countryside and will do so from now on wearing Jöttnar.

B
Brian M.
Quality Kit

Managed to grab one of these in the sale. Superb quality jacket which is well made, went with a medium and the fit is spot on for me, it does what it says and protects you even with a single layer on below. The warmth from the insulation can really be felt but it never gets too hot that you become uncomfortable.

D
Davie
Well impressed

Took advantage of the sale back in may I think it was and bought for a great price, I’ve not had the chance to use it for what it was made for until last week, -8 to -9 with a wind chill of -12 in the Cairngorms, I used an eclipse base layer underneath and was quite comfortable with just the 2 layers so definitely performed in low temperatures,, I got caught out without a shell over it,in a downpour and one of the sleeves soaked through within 10 minutes where the baffles are stitched, a spray of nikwax should solve that,,, my First purchase from jottnar and I’m over the moon with quality and how it performed regardless the sleeve soaking through, that much so I’m online looking to upgrade my 8 year old ME Rupal shell with either the Asgard or the Midgard

J
John S.
Excellent

Great jacket that looks and feels really quality. It’s really warm and works well with layers. Had mine for nearly a year now and it’s still in fantastic condition.

W
Wayne W.
Brilliant

Top kit as always

M
Martin I.
Thorne Down Jacket

I received my Thorn Jacket quickly without any problems.
Perfect fit, with room underneath for extra layers, not too tight. Excellent quality and very light. Can’t wait to test it out in the Lake District (my local stomping ground) when winter comes, which won’t be long in this neck of the woods.

C
Customer N.J.
Fantastic Products

Item received a couple of weeks ago, well pleased, well worth the money and a great company to deal with.

F
Francisco G.
A good jacket

This jacket is light and fits nicely, very well made, can't say if it will be warm enough just yet as it is summer but I am sure it will as I had to take it off rather quickly due to the warmth but it is June. I am very happy with the jacket which I purchased in the sale, also the customer service team give excellent care if you need to contact them.

F
Frank
Thorne

Excellent jacket. Well built with great features. I’m 6ft 13st with a 42 chest and 36 waist, the large fits just right, allowing room for layering without being too bulky.

M
Michael D.
Jottnar Thorne 5 Stars ⭐️⭐️⭐️⭐️⭐️

Absolutely love this Jottnar Thorne jacket . Fits true to sizing charts , I’m 5’8’’ weight 10 stone , 42 inch chest and broad shoulders so I ordered a medium and it fits great . I already have a black Fenrir and wanted a second jacket in blue so opted for the Thorne in Eclipse colour so that I didn’t have 2 jackets exactly the same. The Thorne was definitely of interest because it has the tougher outer shell ripstock material . It has a superb cut , beautiful detailing and positioning of the zips, especially love the outer vertical breast pocket , really handy for quick access. The down filling is incredibly warm , and the hood offers great wind /rain protection. It’s not designed to be waterproof but more like showerproof which it does exceptionally well . The cuffs are elasticated perfectly, all round love this jacket ,and so light and easy to pack into its stuff bag to throw into a back pack .

B
Brian F.
Excellent jacket.

The Thorne jacket is well made, light and very warm. The elasticated hood was a concern but it works very well indeed. The fit is good and, overall, I am exceptionally pleased with my purchase.

S
Siôn B.
The best down jacket I've owned

This is the best down jacket I've owned, and I am absolutely delighted with it. It is warm without being too warm, and after around a fortnight of daily use, I can't fault it. The design is just sublime, with all the extra touches, such as hydrophobic down, cuffs and so on, all contributing to the excellence of the product. My only gripe is the length it took to deliver it.

A
Alex M.
Awesome but if kit

Had it over a month. Been in constant use in the Pyrenees and the Alps. Probably the warmest layer I own. Packs small enough for back country adventures, and is a fabulous colour. 5/5

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