Mens Aktiv Down Hooded Jacket (Sunshine/Navy)

Colour: Sunshine/Navy
Free UK delivery over £50
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An incredibly versatile insulated layer, constructed with a lofty 700 fill power down, yet lightweight and packable. Warm enough to stand on its own in frigid, dry conditions but compact enough to be used as part of a layering system, the Aktiv is designed to accompany you on active alpine pursuits offering an extra layer of warmth. With a Nylon ripstop outer and an insulated & adjustable hood you'll be feeling confident as you strike out BEYOND BOUNDARIES.

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  • 700FP ethically produced Goose Down
  • Premium 90/10 Down/Feather ratio
  • RDS Certified
  • Nylon ripstop outer fabric with DWR (Durable Water Repellent) & down proofing finish
  • Mini-stitch through baffle construction
  • Down-filled hood with extended collar for extra face protection & warmth
  • Internal hood adjusters for a streamlined finish and flexible fit
  • No-lift gusseted underarms
  • Front zip & internal insulated zip baffle with soft Tricot chin guard
  • Zipped hand pockets - one doubles as a stuff sack
  • Corded zipper pulls are easy to grab, even whilst wearing gloves
  • Stretch elastic bound cuffs for a flexible fit
  • Reflective logo
  • Adjustable drawcord hem
  • Hanging loop
  • Garment weight (size M) 465gm
  • Down weight in garment - 131gm/size S, 138gm/size M, 145.5gm/size L, 153gm/size XL, 158gm/size XXL

Please note: Down is exceptionally fine and can work itself through small openings, especially if the feathers become compressed. To keep your garment looking neat do not pull feathers through (this will make holes bigger), but tease them back in and rub the fabric to help seal the hole. For more information on caring for your down garment please see the Care section on the Fjern website.

Size chart

Mens Jackets & Tops

Regular / Athletic Fit

Chest 90-95 96-100 101-106 107-111 112-117
Waist 74-78 79-83 84-88 89-93 94-99

The above chart indicates body measurements, not garment dimensions.
Calculate your own body measurements, then select the appropriate product size.
If your body measurements are between sizes, go down to the smaller size for a tighter fit, or up to the larger size for a more relaxed fit.

Size Chest (cm) Length (cm) Hem (cm) Sleeve Length (cm)
S 60 67.5 42 79.5
M 62 69 44 81
L 64 70.5 46 82.5
XL 66 72 48 84
XXL 68 73.5 50 85.5


  • Free shipping for UK orders over £50.
  • Free shipping for International orders over £100.
  • We aim to get UK orders to you within 2-5 working days. Delivery lead times for international orders vary.
  • For more information click here.


  • If you're not completely happy with your purchase, you can return an item within 100 days of receiving your order.
  • Items should be returned in the same condition in which you receive them: the original product packaging and tags must still be attached, and the products must be in an unused condition.
  • Please see full return instructions here.

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Customer Reviews

Based on 48 reviews
David Bracewell
Size: L
Height: 5'10 - 6'0
Fit: True to Size
Activity: Casual use
Recommend: Yes
Fjern aktiv down jacket rust/charcoal

First ever Fjern purchase and after reading reviews decided to purchase.
Great price, arrived in 2 days.
Worn twice in -5 conditions and have to say how warm it is. The fit (large) is perfect (I’m 6ft athletic build)
Not usually one for leaving feedback but feel like others need to know the quality.
Will definitely buy again.
Great work guys

Michael kemeter
Size: M
Height: 5'10 - 6'0
Fit: True to Size
Activity: Climbing
Recommend: Yes

Thank you for that great quality!

Thank you, Michael! We're happy to receive your positive comments on our Aktiv Jacket! We hope it is performing well on your climbing adventures.

Kind regards,
The Fjern Team

Size: L
Height: 6'1 - 6'3
Fit: True to Size
Activity: Hiking
Recommend: Maybe
Fjern down jacket

Good value jacket. Light, warm and fits well. However, price reflects quality. Not properly sealed internally to stop down escaping through the fabric of the jacket. Every time I wear it there are several tingly white tufts of down poking through. Not bad for the price.

Thank you for taking the time to share your feedback, Adam. We genuinely appreciate your input as it helps us improve our products.

We're happy to hear that you find the jacket to be lightweight, warm, and well-fitting. Your positive comments are encouraging, and we're pleased to know you're satisfied with these aspects of the jacket.

Regarding the issue you mentioned with down escaping through the fabric, we apologise for any inconvenience this has caused. It's important to note that down is exceptionally fine and can work itself through small openings, especially if the feathers become compressed. To keep your garment looking neat, we recommend not pulling feathers through, as this can make the holes bigger. Instead, you can gently tease them back in and rub the fabric to help seal the hole. For more information on caring for your jacket, please see the Care section on our website.

Our design and production teams remain dedicated to the continuous improvement of our products, and we're constantly on the lookout for innovative materials and methods to enhance our products.

We truly appreciate your support and your willingness to provide us with constructive feedback. If you have any further concerns or questions, please don't hesitate to reach out to our customer service team.

All the best,
The Fjern Team

kenneth green
Great product

Various colours available. Extremely light and warm

Quality and well fitting.

This is a great looking jacket and actually much better fitting than I had expected. I am 5,10" and 12 stone and have a medium. The quality is excellent and I have found it particularly useful when walking in cold weather and is easily stowable if needed. It's not the type of jacket I would wear to stand around in cold weather as a thicker jacket would be more suitable, although you can easily fit another layer underneath. Also a decent well insulated hood. All in all excellent.

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