Alpine Ultra Down Jacket (sale)

A climbers' down jacket at the limits of lightness. Even with chest pockets and the optional helmet-sized hood, it's lighter, warmer and packs smaller than fleece.
Typical Operating Temperature
Guideline minimum temperature. Sleeping Bag TOT: you should get a night’s sleep, under normal circumstances. Clothing TOT: you should feel warm enough, assuming low/moderate activity. Sleep System TOT: relates to full system. For more details, see our Technical Briefing.
-10°C / 14°F
For clothing, weight is for size: M. For sleeping bags, weight changes with selected length/width. N.B. there may be some variation in the weights of finished products.
350g / 12oz
Alpine Ultra Down Jacket (sale)

The best down jacket in the world for light and fast.
Jon Griffith.



  • £127 less than our standard version
  • Only available until 20 April
  • Rare 900 fillpower European Goose down
  • Inner and outer fabric: ripstop M1 Microfibre
  • Stitch-through construction for lightness
  • 2 chest pockets above harness level
  • 1 internal security pocket
  • Front zip with internal draft baffle
  • Fleece-lined collar
  • Lycra cuff
  • Double-exit shock cord hem
  • Reflective tape for night location
  • Clip loop for securing
  • Stuff sac
  • Packed size: 13cm diam x 21cm high*
  • Option: down filled zip-on hood


*Please note: We make our stuff sacs big enough to allow fairly easy stuffing rather than reducing the jacket to the tightest minimum.


Only available until 20 April.

Facing an early morning start, a cold wind high up, even an unexpected bivvy. Whenever you're going to need extra warmth on your peak, it doesn't come much lighter than the Alpine Ultra. It's lighter than fleece, much warmer, packs a lot smaller and has a 100% windproof outer too.

Super-light M1 fabric and our exceptional 900 down provide the superb warmth/weight performance. Chest pockets and a large (optional) hood allow harness and helmet use. A fleece collar? That's in there too. This version is on offer at £127 less than our standard version.

Note: The optional hood needs to be ordered at the same time as the jacket.

Dispatch time: As with all PHD products, these are made to order and by hand. We estimate it will take us around 4 to 6 weeks to make and dispatch sale orders. During busy periods it may take a little longer.

Lightweight M1 fabric (weight: 39 gsm)

Lightweight silky microfibre. This close-weave 20 denier fabric is fully downproof, but also light and flexible enough to allow the down full loft. A reliable performer that has been the basis for much of our lightweight gear for some time.

900 Fillpower Down

European goose down of very high quality. A truly excellent down with large clusters, consistent quality and lively long-term performance. More on our down insulation.

Reviews relate to our standard Alpine Ultra jacket, which is 20g lighter:

"Alpine Ultra jacket was definitely the "go to" piece of kit for the whole expedition. Quick on, quick off, stuff it in the pack, clip it to an anchor whilst you sort gear. Drishell is durable enough for arm rappels on fixed ropes and definitely proofed enough for high mountain conditions."
Ben Kane

"Packs to nothing."
Petesy (a.k.a. Peter Macfarlane).

"It's the perfect alpine downie - 330g and rated to -10 degrees - it blows the competition out of the water. Whilst the weight is awesome, you also get a tiny packed size out of it meaning that your down jacket won't eat up half your backpack space so you can go with a small backpack (20L) and keep a light and fast rhythm to your climbing."
Jon Griffith.

"I used the Alpine Ultra Jacket as a belay jacket and emergency outer layer in the Indian Himalaya - I found it to be excellent. It's lighter and packs down smaller than any comparable jacket, and its warmth to weight ratio is second to none. There is no other jacket that I would've preferred to have with me."
Virgil Scott - Imperial College Reru Valley Expedition (Zanskar Himalaya, India).

"Thank you for the fantastic equipment. Everything (including the Alpine Ultra Jacket) was above and beyond what was required and fended off the elements perfectly."
Graham B., on a trip to Aconcagua.

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