Mens Aktiv II Down Jacket (Black/Charcoal)

£85.00£180.00
Size
Estimated delivery (GB): Nov 14th - Nov 18th

Order by 18th Dec for x-mas delivery

The AKTIV II is built for those moments when a lightweight, packable layer makes all the difference, combining responsibly sourced 700 fill power RDS certified down with a durable recycled ripstop outer for dependable warmth across a wide range of mountain conditions.

The 90/10 down fill provides an excellent warmth to weight ratio, while the recycled 46gsm nylon shell is finished with a PFAS free C0 DWR treatment to help repel light moisture and keep the insulation performing as conditions change. Down proof construction prevents feather loss, ensuring lasting performance season after season.

Without the added bulk of a hood, the AKTIV II layers comfortably beneath a waterproof shell or over a technical baselayer, adapting easily as temperatures fluctuate throughout the day. Compressing neatly into its own pocket, it takes up minimal space in your pack until the temperature drops and extra insulation is needed.

Battle tested for hiking, trekking and alpine pursuits, the AKTIV II is a dependable layer for everything from cool valley mornings to exposed high altitude ridgelines. Lightweight, versatile and built to keep the elements at bay, it gives you the confidence to continue beyond boundaries.

  • RDS Certified 700FP ethically produced Down insulation throughout
  • Premium 90/10 Down/Feather ratio
  • Recycled Nylon 46gsm ripstop outer fabric with C0 PFAS free DWR (Durable Water Repellent) & down proofing finish
  • Mini-stitch through baffle construction
  • No-lift gusseted underarm panels
  • front zip & internal insulated zip baffle with soft Tricot chin guard
  • zipped hand pockets – right side doubles as a stuff sack
  • Zipped chest pocket
  • Corded zipper pulls are easy to grab, even whilst wearing gloves
  • Stretch elastic bound cuffs & hem for a flexible fit
  • Reflective logo
  • Hanging loop
  • Weight (size M): 363g
  • Down weight in garment – 128gm/size S, 134gm/size M, 140gm/size L, 147gm/size XL, 153gm/size XXL
  • Caution: Down is exceptionally fine and can seep through small openings, especially if the feathers are compressed. To keep your garment clean, do not pull the feathers through (this will enlarge the holes), but tuck them in and rub the fabric to help seal the hole. For more information on caring for your down garment, please visit our care page.
  • Outer: 100% Recycled Polyamide
  • Lining: 100% Recycled Polyamide
  • Insulation: 90% Down, 10% Feather
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Mens Aktiv II Down Jacket

Assembly instructions

Insulation type

Down

Weight

363 g

Key features

  • Gusseted underarms for unrestricted movement
  • Front zip with insulated baffle and soft Tricot chin guard
  • Zipped hand pockets, one doubling as a stuff sack
  • Zipped chest pocket for secure storage
  • Elastic-bound cuffs and hem
  • 5
    The overall weight of the garment. Lower ratings indicate heavier, more robust gear designed for extreme weather, while higher ratings mean lightweight options ideal for packability and speed-focused activities.
  • 3
    How effectively the fabric allows moisture and sweat to escape. Lower ratings suit low-output activities where warmth is the priority, while higher ratings are better for high-intensity activities, reducing overheating and condensation inside the garment.
  • 4
    How much warmth the garment provides. Lower ratings favour breathability and mobility, while higher ratings mean maximum warmth for extreme cold, often using high-loft down or synthetic insulation.
  • 2
    The garment's ability to keep water out. Lower ratings are for water-resistant or showerproof materials that handle light rain, while higher ratings signify full waterproofing with sealed seams and durable water repellent (DWR) coatings for prolonged exposure.
  • 3
    How well the garment resists wind penetration. A lower rating means the fabric allows some air movement for better breathability, while a higher rating indicates a near-complete wind barrier, reducing windchill in exposed conditions.
  • 5
    How compactly the garment can be packed. Lower ratings indicate bulkier items that prioritise warmth or durability, while higher ratings mean the garment compresses down small, ideal for fast-paced activities or lightweight travel.

Technical specs

Main fabric 100% Recycled Nylon 46gsm ripstop
Lining 100% Recycled Nylon 33gsm
Insulation RDS 90/10 Duck Down 700FP
Activities General use, Hiking, Climbing, Mountaineering, Skiing
Sustainability details Recycled outer (100% Recycled Nylon 46gsm), PFC-free C0 DWR, RDS Down
Fit Regular
Fabric technology Down-proof ripstop outer
Insulation type Down
Fill power 700FP
Special treatments Down-proofing finish on outer fabric
Technical certifications RDS Certified
DWR technology C0 DWR PFAS Free
Country of manufacture China
Weight 363 g
Hood No
Design date 2025
  • 5 stars: 12 (71%)
  • 4 stars: 5 (29%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
L
L OReilly
Size: XL
Height: 5'4 - 5'6
Fit: True to Size
Activity: Casual use
Recommend: Yes
Super light jacket

What a great jacket. Super light, extremely soft and very warm.

G
Gordon Chilles
Size: XL
Height: 5'7 - 5'9
Fit: True to Size
Activity: Casual use
Recommend: Yes

Nice jacket ,reasonably priced would definitely recommend

G
Gary Green
Size: L
Height: 5'10 - 6'0
Fit: True to Size
Activity: Casual use
Recommend: Yes
Mens Aktiv Down Hoodless Jacket

Excellent jacket. Excellent price especially in the sale. I have quite a collection of these lightweight, warm, infinitely useful jackets.

F
Federico Danza
Size: L
Fit: True to Size
Activity: Hiking
Recommend: Yes
Great Product

What a great product it is! I have been watching and seeing this jacket for a long while till I bought it. As soon as I open the pack I knew it was what I was looking for. I have used it for a while now, travels, hiking, city, etc. It is as warm as I expected, the fit is grat too I bought a Large with the chart and can not regret.

The only concern I have now is that I am seeing some of the feathers coming out of it. The first ones were when I carried a back pack while traveling, but now I have found some feathers coming out from all over the jacket. Is there something I can do to avoir it? I am worried that it might loose its warmth.

Thanks for the review! We're glad you're liking the jacket. A few feathers working loose is normal and won't affect the warmth. Just try to avoid is pulling them out, as that enlarges the hole and lets more escape. Instead, pinch from the outside, tuck the feather back in, and rub the fabric to seal the gap.

C
Charles Hopkins
Size: M
Height: 5'7 - 5'9
Fit: True to Size
Activity: Hiking
Recommend: Yes
Fjern Aktive 2

Great product, very well made, ideal for my purpose also good value for money.

B
Brian Watson
Size: L
Height: 5'10 - 6'0
Fit: True to Size
Activity: Casual use
Recommend: Yes

Mens Aktiv II Down Jacket (Black/Charcoal)

D
Danny T
Size: L
Height: 6'1 - 6'3
Fit: True to Size
Activity: Casual use
Recommend: Yes
Does exactly what it says on the tin!!

To be honest, i was a little skeptical and had some buyers regret as soon as i made the purchase (it hadn't arrived yet) ... I was just thinking i should have gone with one of the brands that I'm more familiar with and use alot - Rab, Hooké or Patagonia. I was quick to change my mind when it arrived.

Its a high quality product, light and a pretty good fit (I think I could have gone down a size, but its fine margins), for context , I'm 6'1' , 90kg and got the L. It fits a little looser than Rab jackets for me. TBH with more layers in the winter, the size will be perfect.

Overall very happy, this was my first purchase from Fjern , but won't be the last. Only niggle (something for the product team) - do look at the hood adjusters, they are quite fiddly and are not as secure as I was hoping. I like a really tight fit, but didn't get to what i would normally be used to, but its not a deal breaker by any stretch.

Thank you for the helpful feedback :-)

N
New Buyer
Size: L
Height: 5'10 - 6'0
Fit: True to Size
Activity: Other
Recommend: Maybe
A first Fern product for me.

Happy with my purchase

G
Graham Ball
Size: L
Height: 5'10 - 6'0
Fit: True to Size
Activity: Hiking
Recommend: Yes
Great jacket

Perfect jacket very warm for the cold winds and can be sorted away easily in its own pocket when the sun comes out

A
Antony
Size: M
Height: 5'10 - 6'0
Fit: True to Size
Activity: Other
Recommend: Yes
Great jacket

Really good jacket, comfortable and warm. Not clammy like some and far better value than other premium jackets. I use it as a thermal layer under my motorcycle mesh jacket, works great. Also wear it as a regular jacket too as it's so good.

R
Robin Daly
Size: M
Height: 5'7 - 5'9
Fit: True to Size
Activity: Casual use
Recommend: Yes
New coat

Lovely cost nice colour fits well

J
James Meechan
Size: XL
Height: 5'7 - 5'9
Fit: True to Size
Activity: Casual use
Recommend: Yes
Great looking jacket

Very warm and snug jacket, very well made .

S
Susan Fennell
Size: XL
Height: 5'10 - 6'0
Fit: True to Size
Activity: Casual use
Recommend: Yes

Bought this jacket for my husband, lovely jacket great fit and true to size.

J
Jeremy Lockett
Size: L
Height: 5'7 - 5'9
Fit: True to Size
Activity: Other
Recommend: Yes

Mens Aktiv II Down Jacket (Poseidon/Citrus)

J
John Clark
Size: XL
Height: 6'1 - 6'3
Fit: True to Size
Activity: Casual use
Recommend: Yes
Recommend in drier cold weather.

Down jacket delivered promptly, good fit. Have worn the jacket several times in cold weather below 5c, feels windproof, and certainly warm would definately recommend in drier cold weather.

S
Steve
Size: M
Height: 5'10 - 6'0
Fit: Kind of Big
Activity: Casual use
Recommend: Yes
Size does matter

I was in two minds whether to return the jacket. I'm 38" chest and bought medium but it is so large that I have to wear three layers underneath. However, I decided to keep it. For me, it would benefit from having a higher neck, but this is a suggested improvement, not a complaint.

N
Norman Birnie
Size: L
Height: 5'7 - 5'9
Fit: True to Size
Activity: Hiking
Recommend: Yes
Down jacket

Brilliant. Very warm and cosy!

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