Women's Waterproof Thermal Jacket Stormtech Nostromo X-2W −10 °C

Reference STX2WC

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SUMMARY

Women's waterproof thermal jacket: synthetic insulation paired with a sealed membrane.

The Stormtech Nostromo X-2W women's jacket combines Thermolex™ synthetic down insulation with a waterproof, breathable H2XTREME® 15,000 mm membrane. Fitted with an adjustable hood, a waterproof zip and articulated elbows, it protects down to −10 °C / 14 °F*, from XS to 3XL.

TECHNICAL DESCRIPTION

WOMEN'S WATERPROOF THERMAL JACKET STORMTECH NOSTROMO X-2W

PROTECTION Cold

RESISTANCE Waterproof 15,000 mm

USE Winter and bad weather

THERMAL PROTECTION Down to −10 °C / 14 °F*

THERMOLEX™ INSULATION HIGH LOFT SYNTHETIC DOWN · H2XTREME® 15,000/10,000

The warmth of a down jacket, the seal of a rain jacket, the weight of neither

The Stormtech Nostromo X-2W women's thermal jacket brings together two functions rarely found in the same garment: Thermolex™ insulation, a high loft synthetic down developed by the brand, and an H2XTREME® 15,000 mm / 10,000 g/m² outer shell that is waterproof, windproof and breathable. Fully sealed seams, a waterproof centre-front zip, an adjustable full-coverage hood and articulated elbows. A 120 g/m² (3.57 oz/yd²) mechanical-stretch outer fabric and a nylon taffeta lining keep it light. Rated down to −10 °C / 14 °F*, in sizes XS to 3XL.

Grand-Froid expert's view

For a February break in New York or a mid-season week in Quebec, pack one jacket instead of a down jacket and a raincoat. Wear it over a light fleece as soon as the wind picks up, a thicker jumper once it freezes. The internal chest pocket keeps your phone warm — a battery left in the cold loses its charge in minutes.

Women's waterproof thermal jacket Stormtech Nostromo X-2W - Cold −10 °C / 14 °F

What is it designed for?

The Nostromo X-2W covers on its own what usually takes two garments: warmth and weatherproofing. That makes it useful wherever changing during the day is not an option.

Lowland winter: from −5 °C / 23 °F to +8 °C / 46 °F, the jacket works on its own over a base layer, and takes a light fleece underneath during cold snaps
Travel in cold, wet climates: New York in February, Quebec in mid-season, Scotland, Ireland — one jacket in the case instead of a down jacket and a raincoat
Standing outdoor work: markets, events, front-of-house, site supervision, where staying still calls for insulation that never comes off
Daily commuting: exposed platforms, the walk to the car park, waiting at the school gate, with the adjustable full-coverage hood for rain blowing sideways
Winter walking and forest trails: 10,000 g/m²/24h of breathability moves out the vapour produced by effort, which keeps the insulation working
And for him: the men's Nostromo X-2 shares the same build — [DATA MISSING: URL of the men's product page, link to be added once verified on the site]

Thermal protection

Thermolex™ insulation is a high loft synthetic down: its lofted fibres hold a still volume of air against the body, and that volume is what produces the warmth you feel. Two things normally destroy it — a gust passing straight through, and moisture flattening the fibres. The H2XTREME® membrane and its 15,000 mm waterproof rating, together with the fully sealed seams and the waterproof centre-front zip, keep water and wind on the outside. In the other direction, 10,000 g/m²/24h lets the vapour produced by effort escape, which keeps the insulation dry and therefore effective. The whole covers the range +5 °C / 41 °F to −10 °C / 14 °F*. To go below that, add a fleece mid layer underneath rather than a heavier outer shell. One advantage specific to this insulation: it holds its properties where wet natural down loses them.

Technical specifications

H2XTREME® outer shell: 15,000 mm waterproof rating and 10,000 g/m²/24h breathability
Thermolex™ insulation: high loft synthetic down developed and tested by Stormtech
Water-repellent finish: durable D/W/R applied to the outer fabric
High-performance windproof shell: wind does not pass through the fabric
Fully sealed seams: every seam sealed with a waterproof film
Main zip: waterproof centre-front zip
Hood: adjustable full-coverage hood
Chin saver: protection at the top of the zip
Ergonomics: articulated action elbows for range of movement
Outer pockets: zippered hand warmer pockets and a zippered sleeve pocket
Inner storage: internal chest pocket and internal mesh stash pockets
Adjustment: adjustable hem
Lining: ultra-lightweight nylon taffeta
Decoration access: provision for embroidery and professional branding
Sizes: XS to 3XL
Fill weight: [DATA MISSING — the Thermolex™ fill weight is not published for this reference]

Composition

Shell: 100% polyester mechanical stretch, 120 g/m² (3.57 oz/yd²)
Lining: 100% nylon taffeta
Insulation: Thermolex™ high loft synthetic down

Commitments

Down-free insulation: Thermolex™ is a synthetic alternative to down, using neither feather nor fur
No intentionally added PFAS: since 2023, all of the brand's waterproof and water-repellent outerwear is produced to this rule, verified by independent testing
Stormtech 5-year warranty: cover against defects in materials and workmanship for the original owner, excluding normal wear and tear. Cover depends on the care instructions being followed

Size guide

Take your body measurements directly on the body, keeping the tape flat without pulling it tight. For standard use, choose your usual size. If you plan to wear a thick fleece underneath, allow room — if in doubt, size up.

Size	Chest	Waist	Hips	Sleeve length
XS	31.5–33.5 in / 80–85 cm	24.5–26.5 in / 62–67 cm	34–36 in / 86–91 cm	30–30.5 in / 76–77 cm
SM	33.5–35.5 in / 85–90 cm	26.5–28.5 in / 67–72 cm	36–38 in / 91–97 cm	31–31.5 in / 79–80 cm
MED	35.5–38 in / 90–97 cm	28.5–31 in / 72–79 cm	38–40.5 in / 97–103 cm	32–32.5 in / 81–83 cm
LG	38–41 in / 97–104 cm	32–34.5 in / 81–88 cm	40.5–43.5 in / 103–110 cm	33–33.5 in / 84–85 cm
XL	41–44.5 in / 104–113 cm	34.5–37.5 in / 88–95 cm	43.5–47 in / 110–119 cm	33.4–34 in / 85–86 cm
2XL	44.5–48.5 in / 113–123 cm	37.5–41.5 in / 95–105 cm	47–51 in / 119–130 cm	34–34.5 in / 86–88 cm
3XL	48.5–52.5 in / 123–133 cm	41.5–45.5 in / 105–116 cm	51–55 in / 130–140 cm	34–34.5 in / 86–88 cm

Body measurements in inches and centimetres, from the official Stormtech fit chart

Care & Durability

Before washing: close all zips and hook-and-loop fastenings, as they snag the fabric during the cycle
Washing: inside out, in cold water, on a gentle cycle with a low spin, together with like colours
Detergent: a mild detergent, without fabric softener — softener degrades the durability of the membrane and of the water-repellent finish
Drying: air dry, or tumble dry on low heat
Ironing: cool iron only, avoiding branding and logos
Bleach and dry cleaning: neither
Frequency: in everyday use, walking or daily wear, a wash every 20 to 30 days of use maintains performance
The garment label takes precedence: it carries the instructions specific to this model and overrides this general guidance
Warranty: the 5-year cover depends on the care label instructions being followed

Return or exchange — 30 days

You have 30 days from delivery to request a return or an exchange on this item.

Why choose the Nostromo X-2W jacket?

A down jacket keeps you warm until the first downpour; a rain jacket keeps water out without adding warmth. The Nostromo X-2W does both in a single garment, by placing Thermolex™ insulation behind a shell rated at 15,000 mm. Its 120 g/m² outer fabric and taffeta lining keep it light enough to wear all day, and the adjustable hem, full-coverage hood and articulated elbows make it a jacket for moving in rather than one for standing about.

The three-layer system:

1st layer — base: next to the skin. Captures body heat and moves perspiration outwards.
2nd layer — mid layer: insulates and holds warm air around the body. Fleece, knit or thermal top.
3rd layer — outer (role of this product): shell, softshell jacket or padded gilet. Blocks wind and holds warmth. In sustained rain, a hardshell takes over.

* Indicative temperature. Perceived warmth varies with activity, body type, humidity, wind and the layers worn underneath.