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
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Mountain Warehouse. Useful for checking the exact product range. |
| Model | Alaskan. Helps distinguish this jacket from other styles. |
| Product type | Women’s 3-in-1 long jacket. The layered format gives more than one way to wear it. |
| Colour | Jet Black. Check this if colour matters to your choice. |
| Size | 14. Confirm the selected size before choosing an offer. |
| Taped seams | Fully taped seams for a complete waterproof seal. |
| Waterproof rating | 10,000 mm. Compare this with the level of wet weather protection you want. |
| Breathability rating | 5,000 g. Useful when comparing how much moisture management you want from a jacket. |
| Temperature statement | Thermal 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.





