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Ultra Down Pullover: K Series

Ultra Down Pullover: 'K Series'
Ultra Down Pullover: 'K Series'In Charcoal Ultrashell (hood optional)In Blue Ultrashell, showing drop tail back (stud-on hood optional)In Charcoal UltrashellUltra Down Pullover: 'K Series'Ultra Down Pullover: 'K Series'Green Ultrashell fabricPurple Ultrashell fabricBurnt Orange Ultrashell fabricRed Ultrashell fabric

Ultra's extremely low weight and bulk make it perfect for backpacking.
Judy Armstrong, TGO Magazine ("Lightest in Test").

Ultra Down Pullover: K Series

Our lightest sub-zero down pullover. A 'K Series' product. Warmth to weight at the limit of possibilities for extra-keen lightweight backpackers and mountain racers.
Typical Operating Temp:-5°C (23°F)
Weight:225g (8oz)
Price:£315.00

Available Options:

Sizing type:
Because our custom-sized clothing is personalized specifically for you, it is non-returnable and can take up to 45 working days to make & dispatch
Body Width:
Body Length:
Arm Length:
Size:
Outer Fabric:
Hood:

Features

  • A PHD K Series product: Ultimate warmth / weight performance
  • PHD's Unique 1000 fillpower down
  • Water-resistant Ultrashell outer fabric
  • Superlight 10X inner fabric
  • Stitch-through construction for lightness
  • Full width front hand-warmer pocket
  • New! Also available in Custom Sizes. Specify Body Width, Body Length, & Arm Length independently*****
  • Small zipped security pocket
  • Short lightweight front zip - pullover style
  • Drop-tail back
  • Elasticated side hem
  • Cuffs: Light Lycra
  • Stuff sac
  • Option:
    • Stud-on superlight hood
  • Pack size: 10 x 18cm*

 

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

Description

This K Series product has been created for one single reason, to take warmth-for-weight performance to the limit of what's possible. Unique 1000 down, super-light materials, and specific design features mean that the word Ultralight now applies to this wide range of gear that will take you to the Poles as well as on a Sahara Marathon. More on the K Series...

This jacket is now also available in custom sizesSpecify Body Width, Body Length, and Arm Length independently to order a made-to-measure down jacket. This tailor-made service can cope with sizes from XXXS to XXXL and is ideal if your chest/waist to height and/or arm ratios differ from standard, ready-to-wear patterns. 

 

Our original Ultra Pullover won accolades as "the ultimate down jacket for ultralight backpacking". Unbelievably this K Series Ultra Pullover weighs less despite the addition of a water-resistant outer fabric. This is thanks to our unique 1000 down and the new ultralight 10X fabric inner.

Pared down design as for all the Ultra range, elastic at side-waist, Lycra cuffs, through front pocket with concealed security pocket, and drop-tail back.

TGO magazine recommendedTGO Magazine "Lightest in Test"

Backpacking Light - Highly RecommendedBackpacking Light "Highly Recommended"

Technical

Ultrashell (weight: 40gsm)

The lightest of PHD's coated materials. This ripstop nylon provides complete wind block and good water resistance at minimal weight. Ultrashell gives an excellent upgrade to performance with very little weight penalty.

Ultralight 10X fabric (weight: 26 gsm)

10X, PHD's First 10 Denier Fabric. 9,000 metres of the yarn used to weave 10X weighs just 10g, that's about the same as a £1 coin! For all its thinness 10X is amazingly downproof and with reasonable care will go on giving you good service for years.

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 Sizing

The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a shirt or a sweater. A 42" (107cm) chest means that your bare chest uninflated measures 42". Inside Arm is measured from armpit to wrist-bone.

Size Height Chest Waist Inside arm
XS 155-163cm
(5'1"–5'4")
86cm
(34")
71cm
(28")
46cm
(18")
S 164-170cm
(5'5"–5'7")
91cm
(36")
76cm
(30")
48cm
(19")
M 171-178cm
(5'7"–5'10")
99cm
(39")
84cm
(33")
51cm
(20")
L 179-186cm
(5'10"–6'1")
107cm
(42")
91cm
(36")
53cm
(21")
XL 187-193cm
(6'2"–6'4")
114cm
(45")
99cm
(39")
56cm
(22")

Custom Sizing

Once you've selected a Body Width you can choose Body Length and Arm Length up to two sizes bigger or smaller. For example, a jacket with a medium (M) Body Width can be XS, S, M, L, or XL in Body Length and XS, S, M, L, or XL in Arm Length. If you have any questions about your size, please contact us.

Body Width. Use the chart below to find your Body Width. Measure yourself without clothes, relaxed with an uninflated chest.

Body Width Chest circumference Waist circumference
XS 86cm (34") 71cm (28")
S 91cm (36") 76cm (30")
M 99cm (39") 84cm (33")
L 107cm (42") 91cm (36")
XL 114cm (45") 99cm (39")


Body Length -- can be two sizes up or down from Body Width. Use the chart below to find your Body Length size. Measure your height without shoes:

Body Length Size
Your height in cm Your height in inches
XXXS 139 - 144cm 4'5" - 4'8"
XXS 145 - 154cm 4'9" - 5'
XS 155 - 163cm 5'1" - 5'4"
S 164 - 170cm 5'5" - 5'7"
M 171 - 178cm 5'7" - 5'10"
L 179 - 186cm 5'10" - 6'1"
XL 187 - 193cm 6'2" - 6'4"
XXL 194 - 201cm 6'4" - 6'7"
XXXL 202 - 209cm 6'8" - 6'10"


Inside Arm -- can be two sizes up or down from Body Width. Inside Arm is measured from armpit to wrist-bone without clothes. When you measure your inside arm let your arm hang loosely by your side. Don't extend it horizontally.

Inside Arm cm Inches
XXXS 41cm 16"
XXS 43cm 17"
XS 46cm 18"
S 48cm 19"
M 51cm 20"
L 53cm 21"
XL 56cm 22"
XXL 58cm 23"
XXXL 61cm 24"

N.B. PHD clothing is unisex.

Notes:

  • Down Jackets are sized to fit over thermal underwear & fleece.
  • Shell Jackets are sized to fit over thermal underwear & fleece or light down clothing (e.g. Minimus Jacket): to cover thick down clothing, go up one size.
  • The arms of our outdoor jackets are designed to be long enough to keep your wrists warm when your arms are extended horizontally (when using trekking poles, for example) or when you are reaching above yourself (when climbing, for example). In this respect the arm lengths of our jackets differ from street/fashion jackets.

Reviews

"I used this as my warm layer on the John Muir Trail. I had a hood-less sleeping quilt, a PHD K series pullover without the hood and a separate sleeping bag hood. This combination was perfect for lightness, warmth and flexibility. The PHD pullover was fantastic since it was so light it was no hassle to carry. When I did need it, it proved to be extremely warm for its weight. Originally I bought a 'featherlight' jacket from a well recognised brand but the (fashionable) baffles were small and the net result was that the jacket just wasn't very warm since the down had no room to loft. I sold that jacket and contacted PHD who were really helpful. The weight is comparable to the trendy jacket but it is MUCH warmer. The loft on the jacket is excellent and the fabric is very bleed-proof for the weight. Every night I had to check my ultralight sleeping bag (not from PHD!) for down bleed but I stopped bothering with the PHD pullover – there just wasn’t any bleed."
Nick Freeman

"Both for summer Alpine and winter UK I always carry a 'get out of trouble' layer, which usually resides in the bottom of my rucksack. I need it to be reliably warm, but at the same time light and compact. PHD's Ultra Down Pullover hits this particular nail on the head for me, delivering a solid -5° C rating, whilst at the same time packing to about the size of an orange and weighing less than 230g. It's part of the K Series range of garments that utilise superlight fabrics and 1000 fill power down to deliver an extremely light but reliable garment"
Trail Magazine's Mountaineering editor, Jeremy Ashcroft

The reviews below relate to the previous version of this pullover, which weighed the same but didn't have a proofed outer fabric

TGO magazine recommended

"Ultra's extremely low weight and bulk make it perfect for backpacking ... The combination of warmth ... weight and water resistance is wonderful."
Judy Armstrong, TGO Magazine ("Lightest in Test").

Backpacking Light - Highly recommended

"If I were to list my specifications for the perfect ultralight down jacket, it would describe the PHD Ultra Down Pullover exactly ... One trip with this jacket is all it took to convince me that it is the ultimate down jacket for ultralight three-season backpacking in the mountains, winter backpacking in the desert, or cold (but not frigid) weather pursuits of any kind ... Based on its fit and exceptional loft and warmth for its weight, the PHD Ultra Down Pullover is my new favorite jacket."
Will Rietveld, Backpacking Light ("Highly Recommended"). Read full review.

"The uber light Ultra Down pullover is simply brilliantly designed, with astonishing attention to detail. It fits perfectly with very little wasted in the way of tensioners, cinch cords and elastic, an amazing feat. Surpisingly for something as light as this, it is tough and won't fall by the wayside when the weather and terrain hits you hard."
Richard H.

"I am delighted with it. It really is a ridiculously light bundle of warmth that packs down to nothing. I had considered buying the patagonia special edition down sweater, but I'm very pleased that I went for the Ultra instead. - I'm pretty sure it's going to spend most of its life in my rucksack - If I can manage to prise it from my wife's hands!"
Chris W.

"I loved it from the off. It's madly warm for its weight. It's become my insulating layer of choice."
Dave Hanlon.

"Very impressed with the warmth to weight ratio."
Sergeant in Devon & Cornwall Constabulary.

"Thank you for the swift making and delivery of my ultra down pullover. It is an absolutely beautiful coat, and I am extremely grateful of the effort you have put in to get the coat ready before I start my expedition at the end of this month. I can assure you that this will not be my last purchase from you."
Dan Morley.

"Absolutely Fantastic !!!!!!!!!!!"
Ray Griffiths.

"It's a fantastic garment."
Phyllida Poltock.

"Really delighted with the product to date."
Mark Alexander.

"I recently bought an Ultra Pullover from you. I used it in the lakes before Xmas in conjunction with a pied elephant sleeping bag to bivvi out. Was really impressed as the weather turned out rather horrible and I got a fair bit of condensation in my bivvi bag. I thought the down would get wet quick but that didn't happen - so I stayed just warm enough. All in all pretty amazing from something so small and light - had just 2 layers underneath. So I've been really impressed and want to say thanks. I will be spreading the word about your products."
Brian Leite.

More

Features

  • A PHD K Series product: Ultimate warmth / weight performance
  • PHD's Unique 1000 fillpower down
  • Water-resistant Ultrashell outer fabric
  • Superlight 10X inner fabric
  • Stitch-through construction for lightness
  • Full width front hand-warmer pocket
  • New! Also available in Custom Sizes. Specify Body Width, Body Length, & Arm Length independently*****
  • Small zipped security pocket
  • Short lightweight front zip - pullover style
  • Drop-tail back
  • Elasticated side hem
  • Cuffs: Light Lycra
  • Stuff sac
  • Option:
    • Stud-on superlight hood
  • Pack size: 10 x 18cm*

 

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

Description

This K Series product has been created for one single reason, to take warmth-for-weight performance to the limit of what's possible. Unique 1000 down, super-light materials, and specific design features mean that the word Ultralight now applies to this wide range of gear that will take you to the Poles as well as on a Sahara Marathon. More on the K Series...

This jacket is now also available in custom sizesSpecify Body Width, Body Length, and Arm Length independently to order a made-to-measure down jacket. This tailor-made service can cope with sizes from XXXS to XXXL and is ideal if your chest/waist to height and/or arm ratios differ from standard, ready-to-wear patterns. 

 

Our original Ultra Pullover won accolades as "the ultimate down jacket for ultralight backpacking". Unbelievably this K Series Ultra Pullover weighs less despite the addition of a water-resistant outer fabric. This is thanks to our unique 1000 down and the new ultralight 10X fabric inner.

Pared down design as for all the Ultra range, elastic at side-waist, Lycra cuffs, through front pocket with concealed security pocket, and drop-tail back.

TGO magazine recommendedTGO Magazine "Lightest in Test"

Backpacking Light - Highly RecommendedBackpacking Light "Highly Recommended"

Technical

Ultrashell (weight: 40gsm)

The lightest of PHD's coated materials. This ripstop nylon provides complete wind block and good water resistance at minimal weight. Ultrashell gives an excellent upgrade to performance with very little weight penalty.

Ultralight 10X fabric (weight: 26 gsm)

10X, PHD's First 10 Denier Fabric. 9,000 metres of the yarn used to weave 10X weighs just 10g, that's about the same as a £1 coin! For all its thinness 10X is amazingly downproof and with reasonable care will go on giving you good service for years.

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 Sizing

The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a shirt or a sweater. A 42" (107cm) chest means that your bare chest uninflated measures 42". Inside Arm is measured from armpit to wrist-bone.

Size Height Chest Waist Inside arm
XS 155-163cm
(5'1"–5'4")
86cm
(34")
71cm
(28")
46cm
(18")
S 164-170cm
(5'5"–5'7")
91cm
(36")
76cm
(30")
48cm
(19")
M 171-178cm
(5'7"–5'10")
99cm
(39")
84cm
(33")
51cm
(20")
L 179-186cm
(5'10"–6'1")
107cm
(42")
91cm
(36")
53cm
(21")
XL 187-193cm
(6'2"–6'4")
114cm
(45")
99cm
(39")
56cm
(22")

Custom Sizing

Once you've selected a Body Width you can choose Body Length and Arm Length up to two sizes bigger or smaller. For example, a jacket with a medium (M) Body Width can be XS, S, M, L, or XL in Body Length and XS, S, M, L, or XL in Arm Length. If you have any questions about your size, please contact us.

Body Width. Use the chart below to find your Body Width. Measure yourself without clothes, relaxed with an uninflated chest.

Body Width Chest circumference Waist circumference
XS 86cm (34") 71cm (28")
S 91cm (36") 76cm (30")
M 99cm (39") 84cm (33")
L 107cm (42") 91cm (36")
XL 114cm (45") 99cm (39")


Body Length -- can be two sizes up or down from Body Width. Use the chart below to find your Body Length size. Measure your height without shoes:

Body Length Size
Your height in cm Your height in inches
XXXS 139 - 144cm 4'5" - 4'8"
XXS 145 - 154cm 4'9" - 5'
XS 155 - 163cm 5'1" - 5'4"
S 164 - 170cm 5'5" - 5'7"
M 171 - 178cm 5'7" - 5'10"
L 179 - 186cm 5'10" - 6'1"
XL 187 - 193cm 6'2" - 6'4"
XXL 194 - 201cm 6'4" - 6'7"
XXXL 202 - 209cm 6'8" - 6'10"


Inside Arm -- can be two sizes up or down from Body Width. Inside Arm is measured from armpit to wrist-bone without clothes. When you measure your inside arm let your arm hang loosely by your side. Don't extend it horizontally.

Inside Arm cm Inches
XXXS 41cm 16"
XXS 43cm 17"
XS 46cm 18"
S 48cm 19"
M 51cm 20"
L 53cm 21"
XL 56cm 22"
XXL 58cm 23"
XXXL 61cm 24"

N.B. PHD clothing is unisex.

Notes:

  • Down Jackets are sized to fit over thermal underwear & fleece.
  • Shell Jackets are sized to fit over thermal underwear & fleece or light down clothing (e.g. Minimus Jacket): to cover thick down clothing, go up one size.
  • The arms of our outdoor jackets are designed to be long enough to keep your wrists warm when your arms are extended horizontally (when using trekking poles, for example) or when you are reaching above yourself (when climbing, for example). In this respect the arm lengths of our jackets differ from street/fashion jackets.

Reviews

"I used this as my warm layer on the John Muir Trail. I had a hood-less sleeping quilt, a PHD K series pullover without the hood and a separate sleeping bag hood. This combination was perfect for lightness, warmth and flexibility. The PHD pullover was fantastic since it was so light it was no hassle to carry. When I did need it, it proved to be extremely warm for its weight. Originally I bought a 'featherlight' jacket from a well recognised brand but the (fashionable) baffles were small and the net result was that the jacket just wasn't very warm since the down had no room to loft. I sold that jacket and contacted PHD who were really helpful. The weight is comparable to the trendy jacket but it is MUCH warmer. The loft on the jacket is excellent and the fabric is very bleed-proof for the weight. Every night I had to check my ultralight sleeping bag (not from PHD!) for down bleed but I stopped bothering with the PHD pullover – there just wasn’t any bleed."
Nick Freeman

"Both for summer Alpine and winter UK I always carry a 'get out of trouble' layer, which usually resides in the bottom of my rucksack. I need it to be reliably warm, but at the same time light and compact. PHD's Ultra Down Pullover hits this particular nail on the head for me, delivering a solid -5° C rating, whilst at the same time packing to about the size of an orange and weighing less than 230g. It's part of the K Series range of garments that utilise superlight fabrics and 1000 fill power down to deliver an extremely light but reliable garment"
Trail Magazine's Mountaineering editor, Jeremy Ashcroft

The reviews below relate to the previous version of this pullover, which weighed the same but didn't have a proofed outer fabric

TGO magazine recommended

"Ultra's extremely low weight and bulk make it perfect for backpacking ... The combination of warmth ... weight and water resistance is wonderful."
Judy Armstrong, TGO Magazine ("Lightest in Test").

Backpacking Light - Highly recommended

"If I were to list my specifications for the perfect ultralight down jacket, it would describe the PHD Ultra Down Pullover exactly ... One trip with this jacket is all it took to convince me that it is the ultimate down jacket for ultralight three-season backpacking in the mountains, winter backpacking in the desert, or cold (but not frigid) weather pursuits of any kind ... Based on its fit and exceptional loft and warmth for its weight, the PHD Ultra Down Pullover is my new favorite jacket."
Will Rietveld, Backpacking Light ("Highly Recommended"). Read full review.

"The uber light Ultra Down pullover is simply brilliantly designed, with astonishing attention to detail. It fits perfectly with very little wasted in the way of tensioners, cinch cords and elastic, an amazing feat. Surpisingly for something as light as this, it is tough and won't fall by the wayside when the weather and terrain hits you hard."
Richard H.

"I am delighted with it. It really is a ridiculously light bundle of warmth that packs down to nothing. I had considered buying the patagonia special edition down sweater, but I'm very pleased that I went for the Ultra instead. - I'm pretty sure it's going to spend most of its life in my rucksack - If I can manage to prise it from my wife's hands!"
Chris W.

"I loved it from the off. It's madly warm for its weight. It's become my insulating layer of choice."
Dave Hanlon.

"Very impressed with the warmth to weight ratio."
Sergeant in Devon & Cornwall Constabulary.

"Thank you for the swift making and delivery of my ultra down pullover. It is an absolutely beautiful coat, and I am extremely grateful of the effort you have put in to get the coat ready before I start my expedition at the end of this month. I can assure you that this will not be my last purchase from you."
Dan Morley.

"Absolutely Fantastic !!!!!!!!!!!"
Ray Griffiths.

"It's a fantastic garment."
Phyllida Poltock.

"Really delighted with the product to date."
Mark Alexander.

"I recently bought an Ultra Pullover from you. I used it in the lakes before Xmas in conjunction with a pied elephant sleeping bag to bivvi out. Was really impressed as the weather turned out rather horrible and I got a fair bit of condensation in my bivvi bag. I thought the down would get wet quick but that didn't happen - so I stayed just warm enough. All in all pretty amazing from something so small and light - had just 2 layers underneath. So I've been really impressed and want to say thanks. I will be spreading the word about your products."
Brian Leite.

More

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