Xero Down Trousers

Designed for fast moving expeditions to the highest levels or for any extreme cold weather venture where weight is at a premium. Now also available in custom sizes.

Typical Operating Temperature

-40°C / -40°F

Weight

660g / 23oz

Price

¥102,858.48

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.

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Size

What’s my size?

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.

Standard Sizing Custom Sizing Set body width, body length & arm length

Waist

Inside Leg

Size

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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
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:

Also available in custom sizes. We make clothing to order, so if you’re not a standard size we can make it to fit. To order a non-standard custom size, select the Custom Sizing tab and choose the waist and inside leg sizes that work for you. A custom size takes us a little longer (typically two weeks longer) to make and, because it’s personalized, it’s non-returnable and our customer loyalty scheme can’t be applied.

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.

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 a 2-layer laminate, a high-spec option for the outer layer of our insulated gear. This ripstop fabric strikes an excellent balance between lightness and durability. It is light enough for our Belay tops and tough enough for expedition use in our Omega clothing, while the Kappa clothing makes full use of both its qualities. HS2 is completely waterproof (when the seams are taped) and offers excellent breathability. (Weight: 88gsm).

"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.

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