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Filoment Jacket [Mens] micro rib duck down mountain jacket

Men's 650 fill power micro rib duck down jacket. Soft and quiet to the touch, it is a real alternative to the traditional fleece

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This product has been archived and is no longer available for purchase.

A sleek micro-rib down jacket for low weight mountain warmth. Using premium duck down it is a lightweight top layer ideal for climbing, bouldering and belaying or simply down at the pub after your fun-filled day; or an insulating mid-layer for when serious cold really sets in. Filoment is highly compact so it can be kept at the bottom of your bag without taking too much space and with a DWR coating you can take it anywhere and stay warm.

Filoment has increased baffles to let those feathers flow: larger baffles, larger loft, larger warmth and an augmented fit to allow greater mobility in the upper body.

Think of Filoment like a lightweight, windproof fleece, something you can throw on over a base layer or a t-shirt. It is an active, functional cut made to extend over your hips with a long back length.

Soft and quiet to the touch, it is a real alternative to the traditional fleece jacket. Its low bulk packs down much smaller than a fleece, Filoment will easily stow away into a 1 litre Airlok dry bag (sold separately) , offering protection for lightweight adventure athletes on a mission.

The external breast pocket is big enough to stash your phone, gps or wallet in without having to undo your main zip and lose all that precious warm air! A neoprene hem and a snug collar also help trap air when you are on the move.

Key features
  • DWR coating helping to prevent dirt and moisture absorption
  • Lightweight 20d polyester
  • Zippered waist pockets
  • Lycra bound hem
  • Zip baffle
  • YKK zips throughout
  • All of our down is ethically sourced, not live-plucked and not force-fed
More images
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  • Alpkit nov 15 shoot- c0a4980 -
  • Alpkit nov 15 shoot- c0a6007 -
Vital stats

650+ US (IDFB) 90/10 duck down
Micro ripstop polyester outer with DWR coating


Small: Weight: 300 g / Fill weight: 105g
Medium: Weight: 325 g / Fill weight: 118g
Large: Weight: 350 g / Fill weight: 131g
X-Large: Weight: 365 g / Fill weight: 144g

Origin: China

Down is a natural product and contains a mixture of light and dark clusters. On some of our lighter, more technical garments some dark down clusters may be visible through the shell fabric. Recommended stuff bag: 1 litre or 2 litre Airlok.

Size chart
Men's sizing
Chest (inches) 37" 40" 43" 46" 49"
Waist (inches) 30" 32" 34" 36" 38"
This size chart indicates the body measurements our garments are designed to fit. Measure yourself as described below, and use the size chart to find your size.
Chest: measure around your chest at the widest part. The tape measure should pass under your arms, and be level from front to back.
Waist: measure around your waist at the narrowest part.
Hips: standing with your feet together, measure around your hips at the widest part.


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Free UK Shipping on all orders

Free 2 day delivery to UK addresses is included in all orders so the price you see is the price you pay. Upgrade to next day at the checkout.

Free No hassle 123 Day Returns

Buy with confidence and if you are not happy, change your mind or want a swap for any reason then return it for free and we will exchange or refund no question. The price you see is the price you pay. Just return the kit as you receive it - in its original condition, unused, unworn, with original packaging and fit for resale.


We offer a range of finance options from 0% to 9.9% starting on orders over £500. Please give us a call on 01773 417007 to apply for finance. Our customer support heros will take your order and talk you through the quick and easy application process.

Alpine Bond

If one of our products does not meet your expectations upon delivery or, if it does not live up to the demands placed upon it, please return it within 3 years of purchase for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction if it’s your fault then we will help out the best we can.


2 Reviews


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Great job

Got one on these bad boys for a recent trip to Kilimanjaro. Held up well and a great price. So much so I've gotta order a second one for the wife!

Lightweight and warm

Haven't tried it in any truly nasty weather, but help up well in the cold and damp Northern Irish winter.



OutdoorsMagic test the Filoment

Really rather nice. It's warm, packs down reasonably small, it's decently light, it looks good and, as ever with Alpkit, the price is super competitive too.

Outdoors Magic

Outdoors Magic December 2015 - Jon Doran


OutoorsMagic Filoment

Jon takes a look at the Filoment jacket

a significant improvement on its predecessor: being warmer, neater fitting and better looking too .... it's not just good value, it's a good jacket outright

Jon Doran

OutdoorsMagic January 2016 - Jon Doran