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'K Series' Yukon Hypershell Down Jacket

'K Series' Yukon Hypershell Down Jacket
'K Series' Yukon Hypershell Down Jacket'K Series' Yukon Hypershell Down Jacket'K Series' Yukon Hypershell Down Jacket
The Yukon jacket - K series - was fantastic
Graham Brothwood

'K Series' Yukon Hypershell Down Jacket

At 300g, the lightest Yukon Jacket ever made. A lightweight mountain down jacket, with box wall construction to take "warmth to weight" to the limit of possibilities.
Typical Operating Temp:-15°C (5°F)
Weight:300g (11oz)
Price:£399.00

Available Options:

Size:
Colour:

Features

  • A PHD special Summer Lightning Collection product. Only available May and June 2018.
  • PHD's unique 1000 fillpower down
  • Water-resistant Hypershell outer (our lightest-ever proofed fabric)
  • Sheer-light 7X fabric inner
  • Box-wall construction for maximum loft
  • Lightweight front zip with internal draft baffle*****
  • 2 zipped handwarmer pockets
  • Double-exit shock cord hem
  • Drop-tail back
  • Stuff sac
  • Stud-on superlight down hood with stretch Lycra edging
  • Pack size: 13 x 21cm*
  • Options:
    • Charcoal or Red
    • Sizes:  XS, S, M, L, XL


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

Description

When we first wanted to field test a new and incredibly lightweight water-resistant fabric (Hypershell), we made up a Yukon Jacket to play with. We were blown away with the feel and weight of this jacket. We should have guessed really. Make one of the most impressively light and warm, box wall construction down jackets of all time, but even lighter…a 300 gram Yukon Jacket is seriously impressive.
 
Still the same warmth, still the same box-wall construction protected by a windproof water-shedding outer, just as it was in the original Yukon race jacket used in temperatures down to -30°C.* But at just 300g this special Hypershell K Series Yukon is even lighter and will pack down that much smaller.

Our lightest and finest materials – 1000 fillpower down, 7X inner fabric and windproof water-resistant Hypershell outer, along with lightweight (No.3) zips – have taken this wonderful jacket to a new level of lightweight performance.

This is not designed as a high mountain jacket like the Hispar or the Xero. But when the kit has to be ultralight, and stitch-through jackets are just not warm enough, the Yukon can be the ideal choice.

*Note: Temperature rating. Race competitors balance comfort against weight by a different scale to most other people. The Typical Operating Temperature (TOT) of -15°C is the NORMAL rating for this jacket, while -30°C is the racers' rating.

Technical

Ultralight 7X fabric (weight: 22 gsm)

7X is our new sheer-light 7 denier fabric. An exquisitely fine rip-stop nylon, 7X is incredibly light, highly wind-resistant and has first-rate down proofing. This fabric helps us create the very lightest of gear in the PHD range. Of course the lighter the fabric the lighter the sleeping bag or down clothing, and the less space it takes up in your rucksack. This fabric is so light it actually helps to allow even greater lofting of the down too.

Water-resistant HyperShell fabric (weight: 28 gsm)

HyperShell is PHD’s exceptionally lightweight waterproof coated fabric. This remarkable ripstop nylon provides complete windblock and good water resistance at a breath-taking weight (28 g/sm). HyperShell protects the down from condensation drips found typically in tents, tarps and snow-holes, but its very low weight allows greater lofting of the down and a smaller pack size. Hydrostatic head: 1000mm.

Note: unlike some other so-called 'proofed' fabrics, HyperShell does not rely solely on a DWR (durable water repellent) coating. Although it has a DWR coating, more importantly it has a breathable and permanent PU coating applied on the underside of the fabric that cannot be abraded through daily use, so performance is maintained over many years.

Fabric weight: 28g/m2.

1000 Fillpower Down

This rarest of all downs we reserve for the K Series. European goose down of unique quality. 1000 provides the highest warmth-for-weight performance possible from down. More on our down insulation.

Sizing

Standard clothing sizing chart

Weight shown is for medium (M) size.

The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a shirt, a sweater or a pair of trousers. A 42" (107cm) chest means that your bare chest uninflated measures 42". Inside Arm is measured from armpit to wrist-bone and Inside Leg from crutch to ankle bone. If you find that you fall between (or across) these sizings, please contact us and we will quote you for modifications needed. Modifications cannot be made to sale items, bargain box items or other products not offered at full price. And if you are supplying us with your measurements, it is always useful for us to know your height, even when you are only buying a jacket.

Size Height Chest Waist Inside arm Inside leg
XS 155-163cm
(5'1"–5'4")
86cm
(34")
71cm
(28")
46cm
(18")
69cm
(27")
S 164-170cm
(5'5"–5'7")
91cm
(36")
76cm
(30")
48cm
(19")
72cm
(28.5")
M 171-178cm
(5'7"–5'10")
99cm
(39")
84cm
(33")
51cm
(20")
76cm
(30")
L 179-186cm
(5'10"–6'1")
107cm
(42")
91cm
(36")
53cm
(21")
80cm
(31.5")
XL 187-193cm
(6'2"–6'4")
114cm
(45")
99cm
(39")
56cm
(22")
84cm
(33")
XXL 194-201cm
(6'4"–6'7")
122cm
(48")
107cm
(42")
58cm
(23")
88cm
(34.5")
XXXL 202-209cm
(6'8"–6'10")
130cm
(51")
114cm
(45")
61cm
(24")
91cm
(36")

N.B. PHD clothing is unisex and made in standard sizes S / M / L and XL, with XS available on Minimus, Sigma, Ultra, and Yukon jackets, vests and pullovers as standard, and on certain other items on request. XXL & XXXL are available for certain items on request, and so are simple modifications between sizes (e.g. Medium width combined with Large length). Please contact us for details.

Allowances:

  • Down Jackets, Pullovers, Vests, Down Suits: sized to fit over thermal underwear & fleece.
  • Down Trousers & Salopettes: sized to fit over thermal underwear &/or climbing trousers.
  • Shell Jackets: sized to go over a down jacket (e.g. Yukon Jacket). To cover thicker down clothing go up one size; to cover base layer & fleece clothing, go down one size.
  • Shell Trousers & Salopettes: sized to fit over thermal underwear &/or outdoor trousers.
  • Shell Suits: D-type suits will fit over down clothing of the same named size; F-type suits will only fit over thermals and fleece.

Reviews

The comments below relate to standard Yukon 'K Series' Down Jacket, which is 65g heavier

"The Yukon jacket - K series - was fantastic. You warmed up as soon as you put it on and you barely noticed you had a jacket on, it was that light-weight! It stashed to virtually nothing in the small stash bag, which meant that I could easily put it in my day rucksack with water, cameras, other clothing without it taking up too much space. As soon as we got in to camp, the jackets went straight on to make sure we did not get too cold standing around. The whole package was excellent - good, roomy pockets, easy to use zip and a very warm hood. It was a real saviour."
Graham Brothwood, 9 day camping trip to Langtang Valley (Nepal) up to 3,840 metres.

"The Yukon is very light and the down fill is the softest I've ever felt, I haven't found one single shaft or barb inside the baffles of the jacket. The Yukon's hood … sits there perfectly and doesn't slip back or forward when I'm moving. It's so light and soft it might feel fragile in your hands but this a proper winter mountain jacket all the way."
Peter Macfarlane (PTC) review in WalkHighlands.

"I am sure that you will be interested to hear that our blue Yukon jackets fitted perfectly and kept us warm and snug in the Arctic snow. The jackets were the envy of everyone on board - praise indeed from such experienced travellers."
Nigel Humphries.

The comments below relate to standard Yukon Down Jacket, which is 160g heavier

"Many thanks for the jacket that you supplied me for the Yukon Arctic Ultra. [It] performed perfectly in temperatures down to -35c. The light weight and small size was also a huge help and helped me gain second place in the race. I ... am now the second fastest person over the course and the fastest European."
Dr Stuart Gillet (wearing a prototype Yukon jacket).

"Without PHD kit I would have been toast."
Jacob Hastrup 2nd place in Yukon Arctic Ultra 100 mile race.

"I'm always proud when I tell mountain guides and our guests about PHD and about the origin of my down clothing. The Yukon Down Pullover was been my best buy ever. In avalanche training courses it was possible to wear the pullover the whole day at -20 degrees Celsius!"
André Henzen, UIAGM Mountain Guide, Switzerland

"I used a Yukon down jacket with Gore-tex outer on the expedition. It packs down small (half the size of my previous jacket), it's great for early starts and when the snow starts falling."
Dominic Southgate - Imperial College Reru Valley Expedition (Zanskar Himalaya, India).

"For more serious winter outings I use PHD's Yukon Down Jackets. PHD make the best lightweight kit on the market. I just wouldn't go Munro bagging in winter without mine. It's fab."
Phil Newby.

"Ben was impressed with the Yukon Jacket I bought for him. In fact, we ended up fighting over it on more than one occasion! Again, simplicity of design, total warmth, amazing lightness and quality of manufacture was what made it stand out from the rest."
James Garrett.

"Thank you for the Yukon jacket! It fits super, is warm and nicely made."
Mark van Onna.

"Just wanted to thank you for the prompt delivery of my Yukon down jacket. It is fantastic and I have worn it constantly since it arrived."
Lise Cooper.

Features

  • A PHD special Summer Lightning Collection product. Only available May and June 2018.
  • PHD's unique 1000 fillpower down
  • Water-resistant Hypershell outer (our lightest-ever proofed fabric)
  • Sheer-light 7X fabric inner
  • Box-wall construction for maximum loft
  • Lightweight front zip with internal draft baffle*****
  • 2 zipped handwarmer pockets
  • Double-exit shock cord hem
  • Drop-tail back
  • Stuff sac
  • Stud-on superlight down hood with stretch Lycra edging
  • Pack size: 13 x 21cm*
  • Options:
    • Charcoal or Red
    • Sizes:  XS, S, M, L, XL


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

Description

When we first wanted to field test a new and incredibly lightweight water-resistant fabric (Hypershell), we made up a Yukon Jacket to play with. We were blown away with the feel and weight of this jacket. We should have guessed really. Make one of the most impressively light and warm, box wall construction down jackets of all time, but even lighter…a 300 gram Yukon Jacket is seriously impressive.
 
Still the same warmth, still the same box-wall construction protected by a windproof water-shedding outer, just as it was in the original Yukon race jacket used in temperatures down to -30°C.* But at just 300g this special Hypershell K Series Yukon is even lighter and will pack down that much smaller.

Our lightest and finest materials – 1000 fillpower down, 7X inner fabric and windproof water-resistant Hypershell outer, along with lightweight (No.3) zips – have taken this wonderful jacket to a new level of lightweight performance.

This is not designed as a high mountain jacket like the Hispar or the Xero. But when the kit has to be ultralight, and stitch-through jackets are just not warm enough, the Yukon can be the ideal choice.

*Note: Temperature rating. Race competitors balance comfort against weight by a different scale to most other people. The Typical Operating Temperature (TOT) of -15°C is the NORMAL rating for this jacket, while -30°C is the racers' rating.

Technical

Ultralight 7X fabric (weight: 22 gsm)

7X is our new sheer-light 7 denier fabric. An exquisitely fine rip-stop nylon, 7X is incredibly light, highly wind-resistant and has first-rate down proofing. This fabric helps us create the very lightest of gear in the PHD range. Of course the lighter the fabric the lighter the sleeping bag or down clothing, and the less space it takes up in your rucksack. This fabric is so light it actually helps to allow even greater lofting of the down too.

Water-resistant HyperShell fabric (weight: 28 gsm)

HyperShell is PHD’s exceptionally lightweight waterproof coated fabric. This remarkable ripstop nylon provides complete windblock and good water resistance at a breath-taking weight (28 g/sm). HyperShell protects the down from condensation drips found typically in tents, tarps and snow-holes, but its very low weight allows greater lofting of the down and a smaller pack size. Hydrostatic head: 1000mm.

Note: unlike some other so-called 'proofed' fabrics, HyperShell does not rely solely on a DWR (durable water repellent) coating. Although it has a DWR coating, more importantly it has a breathable and permanent PU coating applied on the underside of the fabric that cannot be abraded through daily use, so performance is maintained over many years.

Fabric weight: 28g/m2.

1000 Fillpower Down

This rarest of all downs we reserve for the K Series. European goose down of unique quality. 1000 provides the highest warmth-for-weight performance possible from down. More on our down insulation.

Sizing

Standard clothing sizing chart

Weight shown is for medium (M) size.

The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a shirt, a sweater or a pair of trousers. A 42" (107cm) chest means that your bare chest uninflated measures 42". Inside Arm is measured from armpit to wrist-bone and Inside Leg from crutch to ankle bone. If you find that you fall between (or across) these sizings, please contact us and we will quote you for modifications needed. Modifications cannot be made to sale items, bargain box items or other products not offered at full price. And if you are supplying us with your measurements, it is always useful for us to know your height, even when you are only buying a jacket.

Size Height Chest Waist Inside arm Inside leg
XS 155-163cm
(5'1"–5'4")
86cm
(34")
71cm
(28")
46cm
(18")
69cm
(27")
S 164-170cm
(5'5"–5'7")
91cm
(36")
76cm
(30")
48cm
(19")
72cm
(28.5")
M 171-178cm
(5'7"–5'10")
99cm
(39")
84cm
(33")
51cm
(20")
76cm
(30")
L 179-186cm
(5'10"–6'1")
107cm
(42")
91cm
(36")
53cm
(21")
80cm
(31.5")
XL 187-193cm
(6'2"–6'4")
114cm
(45")
99cm
(39")
56cm
(22")
84cm
(33")
XXL 194-201cm
(6'4"–6'7")
122cm
(48")
107cm
(42")
58cm
(23")
88cm
(34.5")
XXXL 202-209cm
(6'8"–6'10")
130cm
(51")
114cm
(45")
61cm
(24")
91cm
(36")

N.B. PHD clothing is unisex and made in standard sizes S / M / L and XL, with XS available on Minimus, Sigma, Ultra, and Yukon jackets, vests and pullovers as standard, and on certain other items on request. XXL & XXXL are available for certain items on request, and so are simple modifications between sizes (e.g. Medium width combined with Large length). Please contact us for details.

Allowances:

  • Down Jackets, Pullovers, Vests, Down Suits: sized to fit over thermal underwear & fleece.
  • Down Trousers & Salopettes: sized to fit over thermal underwear &/or climbing trousers.
  • Shell Jackets: sized to go over a down jacket (e.g. Yukon Jacket). To cover thicker down clothing go up one size; to cover base layer & fleece clothing, go down one size.
  • Shell Trousers & Salopettes: sized to fit over thermal underwear &/or outdoor trousers.
  • Shell Suits: D-type suits will fit over down clothing of the same named size; F-type suits will only fit over thermals and fleece.

Reviews

The comments below relate to standard Yukon 'K Series' Down Jacket, which is 65g heavier

"The Yukon jacket - K series - was fantastic. You warmed up as soon as you put it on and you barely noticed you had a jacket on, it was that light-weight! It stashed to virtually nothing in the small stash bag, which meant that I could easily put it in my day rucksack with water, cameras, other clothing without it taking up too much space. As soon as we got in to camp, the jackets went straight on to make sure we did not get too cold standing around. The whole package was excellent - good, roomy pockets, easy to use zip and a very warm hood. It was a real saviour."
Graham Brothwood, 9 day camping trip to Langtang Valley (Nepal) up to 3,840 metres.

"The Yukon is very light and the down fill is the softest I've ever felt, I haven't found one single shaft or barb inside the baffles of the jacket. The Yukon's hood … sits there perfectly and doesn't slip back or forward when I'm moving. It's so light and soft it might feel fragile in your hands but this a proper winter mountain jacket all the way."
Peter Macfarlane (PTC) review in WalkHighlands.

"I am sure that you will be interested to hear that our blue Yukon jackets fitted perfectly and kept us warm and snug in the Arctic snow. The jackets were the envy of everyone on board - praise indeed from such experienced travellers."
Nigel Humphries.

The comments below relate to standard Yukon Down Jacket, which is 160g heavier

"Many thanks for the jacket that you supplied me for the Yukon Arctic Ultra. [It] performed perfectly in temperatures down to -35c. The light weight and small size was also a huge help and helped me gain second place in the race. I ... am now the second fastest person over the course and the fastest European."
Dr Stuart Gillet (wearing a prototype Yukon jacket).

"Without PHD kit I would have been toast."
Jacob Hastrup 2nd place in Yukon Arctic Ultra 100 mile race.

"I'm always proud when I tell mountain guides and our guests about PHD and about the origin of my down clothing. The Yukon Down Pullover was been my best buy ever. In avalanche training courses it was possible to wear the pullover the whole day at -20 degrees Celsius!"
André Henzen, UIAGM Mountain Guide, Switzerland

"I used a Yukon down jacket with Gore-tex outer on the expedition. It packs down small (half the size of my previous jacket), it's great for early starts and when the snow starts falling."
Dominic Southgate - Imperial College Reru Valley Expedition (Zanskar Himalaya, India).

"For more serious winter outings I use PHD's Yukon Down Jackets. PHD make the best lightweight kit on the market. I just wouldn't go Munro bagging in winter without mine. It's fab."
Phil Newby.

"Ben was impressed with the Yukon Jacket I bought for him. In fact, we ended up fighting over it on more than one occasion! Again, simplicity of design, total warmth, amazing lightness and quality of manufacture was what made it stand out from the rest."
James Garrett.

"Thank you for the Yukon jacket! It fits super, is warm and nicely made."
Mark van Onna.

"Just wanted to thank you for the prompt delivery of my Yukon down jacket. It is fantastic and I have worn it constantly since it arrived."
Lise Cooper.