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Mountain Warehouse Alaskan Womens 3-in-1 Long Jacket Jet Black 14

Original price was: £129.99.Current price is: £99.99. (as of 10/09/2026 13:02 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

Mountain Warehouse Alaskan Womens 3-in-1 Long Jacket in Jet Black, size 14, with an outer waterproof shell and inner lightweight jacket. It has taped seams, a 10,000 mm waterproof rating, 5,000 g breathability, an adjustable hood and cuffs, plus a thermal test rating of -30 °C.

SKU: B01HMUMWLU Category:

Quick Summary

The Mountain Warehouse Alaskan Womens 3-in-1 Long Jacket in Jet Black, size 14, is a women’s jacket with an outer waterproof shell and an inner lightweight jacket. It can be worn three ways, with both layers together or separately, depending on the weather and how much warmth you want.

Key stated features include taped seams, waterproof protection rated at 10,000 mm, breathable fabric rated at 5,000 g, an adjustable hood and adjustable cuffs. The jacket is also stated as thermal tested to -30 °C.

Key Details

DetailVerified information and buyer relevance
BrandMountain Warehouse. Useful for checking the exact product range.
ModelAlaskan. Helps distinguish this jacket from other styles.
Product typeWomen’s 3-in-1 long jacket. The layered format gives more than one way to wear it.
ColourJet Black. Check this if colour matters to your choice.
Size14. Confirm the selected size before choosing an offer.
Taped seamsFully taped seams for a complete waterproof seal.
Waterproof rating10,000 mm. Compare this with the level of wet weather protection you want.
Breathability rating5,000 g. Useful when comparing how much moisture management you want from a jacket.
Temperature statementThermal tested to -30 °C. Check whether that stated testing level matches your intended conditions.

What to Compare Before Buying

  • Size: This jacket is size 14, so compare the fit with your usual size and any layers you plan to wear underneath.
  • Layering: It is a 3-in-1 design with an outer shell, an inner lightweight jacket and both worn together. Check whether you want that flexibility or just a single jacket.
  • Weather protection: The jacket is rated at 10,000 mm and has taped seams. Compare that with the conditions you expect to face.
  • Breathability: The stated rating is 5,000 g. If moisture management matters, compare this figure with other jackets you are considering.
  • Fit adjustments: Adjustable cuffs and an adjustable hood are included, so check whether those details suit how you want the jacket to sit and seal.

Compatibility, Size and Fit

This version is a women’s jacket in size 14. The main fit checks are the selected size, the long jacket length and whether you want room for layering. The adjustable hood and cuffs give some control over fit, but they do not replace choosing the right size at the outset.

What Else You May Need

No extra item is named as required for wear, but the layered design means you may want to think about what clothing you will wear underneath, especially if you plan to use the jacket with the inner and outer layers together.

Choosing the Correct Version

Check the exact colour and size before choosing an offer. This version is Jet Black in size 14, so it is worth confirming both points if you are comparing different variants of the same jacket.

Before You Decide

Confirm the size, colour and 3-in-1 configuration match what you want. If waterproofing, breathability and a thermal test rating matter to your choice, compare those stated figures with the conditions you expect.

Brand

Mountain Warehouse

Manufacturer

Mountain Warehouse

Binding

Apparel

Product Group

Apparel

EAN

5057634123723

Part Number

025440104005

Model

025440104005

Color

Jet Black

Product Dimensions

4.33 x 4.33 x 4.33 Inches

Item Weight

2.47 pounds

Size

14

Number Of Items

1

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