Xero Down Trousers







Your down trousers were lovely to wear in the hard wind outside the tent during our ski tour last week in the Swedish mountains.
Stefan & Susanne Grimfors.
Features
- Superb 900 fillpower European Goose down
- Outer: lightweight, water-resistant Drishell fabric (untaped)
- Box-wall construction for maximum loft
- Differential Cut allowing full down loft
- New: Now available in custom sizes: specify Waist and Inside Leg sizes independently*****
- HS2 fabric reinforcement at knees and bum
- Side zips:
- full-side opening
- 2 way (join at the top)
- Over baffles with intermittent velcro
- Underbaffle for increased insulation
- Knee - all layers articulated
- Ankle reinforcement patches
- Elasticated waist
- Adjustable braces - removable
- Black inner for quick drying
- Stuff sac
- Pack size: 17 x 28cm*
* Please note: we make our stuff sacs big enough to allow fairly easy stuffing rather than reducing clothing to the tightest minimum.
Description
Designed for fast moving expeditions to the highest levels or for any extreme cold weather venture where weight is at a premium. These down trousers use lightweight, water-resistant Drishell fabric and a highly efficient lightweight construction and provide an efficient hassle-free alternative when the full warmth (and weight) of salopettes is unnecessary.
1000 down option
Now available with our unique 1000 fillpower down as a 'K Series' product.
As used by the EverestMax team, and many others.
Please note: If you order a custom-sized version of these trousers they will take longer (approximately 45 days) to be manufactured ready for dispatch. Custom-sized versions of these trousers are not returnable and customer loyalty discount cannot be applied.
Technical
Water-resistant Drishell outer fabric (weight: 54 gsm)

Ripstop nylon with an ultralight coating: achieves total windblock, along with high breathability and superior water resistance. Superbly efficient for a very light overall fabric weight.
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.
Waterproof HS2 outer fabric (weight: 88 gsm)

HS2 is PHD's high-spec 2-layer ripstop for waterproof outers on our down. It is light enough to be the optional taped shell on our sleeping bags and tough enough for expedition use in our Omega clothing. HS2 is completely waterproof (when the seams are taped) and offers excellent breathability.
Sizing
Standard Sizing
The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a pair of trousers. Inside Leg is measured from crotch to ankle bone.
Size | Waist | Inside leg |
---|---|---|
XS | 71cm (28") |
69cm (27") |
S | 76cm (30") |
72cm (28.5") |
M | 84cm (33") |
76cm (30") |
L | 91cm (36") |
80cm (31.5") |
XL | 99cm (39") |
84cm (33") |
Custom Sizing
Once you've selected your Waist size you can specify the Inside Leg size up to two sizes bigger or smaller. For example, a trousers or salopettes with a medium (M) Waist can have XS, S, M, L, or XL Inside Leg. If you have any questions about your size, please contact us.
Waist. Use the chart below to find your Waist size. Measure yourself without clothes.
Waist size | Waist circumference |
---|---|
XS | 71cm (28") |
S | 76cm (30") |
M | 84cm (33") |
L | 91cm (36") |
XL | 99cm (39") |
Inside Leg. Use the chart below to find your Inside Leg size. Measure yourself without clothes from crotch to ankle bone.
Inside Leg size | Inside Leg length |
---|---|
XXXS | 61cm (24") |
XXS | 65cm (25.5") |
XS | 69cm (27") |
S | 72cm (28.5") |
M | 76cm (30") |
L | 80cm (31.5") |
XL | 84cm (33") |
XXL | 88cm (34.5") |
XXXL | 91cm (36") |
N.B. PHD clothing is unisex.
Notes:
- Down Trousers & Salopettes are sized to fit over thermal underwear &/or climbing trousers.
Reviews
"Your down trousers were lovely to wear in the hard wind outside the tent during our ski tour last week in the Swedish mountains."
— Stefan & Susanne Grimfors.
Features
- Superb 900 fillpower European Goose down
- Outer: lightweight, water-resistant Drishell fabric (untaped)
- Box-wall construction for maximum loft
- Differential Cut allowing full down loft
- New: Now available in custom sizes: specify Waist and Inside Leg sizes independently*****
- HS2 fabric reinforcement at knees and bum
- Side zips:
- full-side opening
- 2 way (join at the top)
- Over baffles with intermittent velcro
- Underbaffle for increased insulation
- Knee - all layers articulated
- Ankle reinforcement patches
- Elasticated waist
- Adjustable braces - removable
- Black inner for quick drying
- Stuff sac
- Pack size: 17 x 28cm*
* Please note: we make our stuff sacs big enough to allow fairly easy stuffing rather than reducing clothing to the tightest minimum.
Description
Designed for fast moving expeditions to the highest levels or for any extreme cold weather venture where weight is at a premium. These down trousers use lightweight, water-resistant Drishell fabric and a highly efficient lightweight construction and provide an efficient hassle-free alternative when the full warmth (and weight) of salopettes is unnecessary.
1000 down option
Now available with our unique 1000 fillpower down as a 'K Series' product.
As used by the EverestMax team, and many others.
Please note: If you order a custom-sized version of these trousers they will take longer (approximately 45 days) to be manufactured ready for dispatch. Custom-sized versions of these trousers are not returnable and customer loyalty discount cannot be applied.
Technical
Water-resistant Drishell outer fabric (weight: 54 gsm)

Ripstop nylon with an ultralight coating: achieves total windblock, along with high breathability and superior water resistance. Superbly efficient for a very light overall fabric weight.
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.
Waterproof HS2 outer fabric (weight: 88 gsm)

HS2 is PHD's high-spec 2-layer ripstop for waterproof outers on our down. It is light enough to be the optional taped shell on our sleeping bags and tough enough for expedition use in our Omega clothing. HS2 is completely waterproof (when the seams are taped) and offers excellent breathability.
Sizing
Standard Sizing
The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a pair of trousers. Inside Leg is measured from crotch to ankle bone.
Size | Waist | Inside leg |
---|---|---|
XS | 71cm (28") |
69cm (27") |
S | 76cm (30") |
72cm (28.5") |
M | 84cm (33") |
76cm (30") |
L | 91cm (36") |
80cm (31.5") |
XL | 99cm (39") |
84cm (33") |
Custom Sizing
Once you've selected your Waist size you can specify the Inside Leg size up to two sizes bigger or smaller. For example, a trousers or salopettes with a medium (M) Waist can have XS, S, M, L, or XL Inside Leg. If you have any questions about your size, please contact us.
Waist. Use the chart below to find your Waist size. Measure yourself without clothes.
Waist size | Waist circumference |
---|---|
XS | 71cm (28") |
S | 76cm (30") |
M | 84cm (33") |
L | 91cm (36") |
XL | 99cm (39") |
Inside Leg. Use the chart below to find your Inside Leg size. Measure yourself without clothes from crotch to ankle bone.
Inside Leg size | Inside Leg length |
---|---|
XXXS | 61cm (24") |
XXS | 65cm (25.5") |
XS | 69cm (27") |
S | 72cm (28.5") |
M | 76cm (30") |
L | 80cm (31.5") |
XL | 84cm (33") |
XXL | 88cm (34.5") |
XXXL | 91cm (36") |
N.B. PHD clothing is unisex.
Notes:
- Down Trousers & Salopettes are sized to fit over thermal underwear &/or climbing trousers.
Reviews
"Your down trousers were lovely to wear in the hard wind outside the tent during our ski tour last week in the Swedish mountains."
— Stefan & Susanne Grimfors.