Quick Summary
The Mountain Warehouse Alaskan Womens 3 In 1 Long Jacket is a long jacket with a waterproof outer shell, a detachable inner jacket and taped seams. It is made to be worn three ways, giving you the option to use the outer shell, the inner lightweight jacket, or both together.
The jacket is described with adjustable cuffs and an adjustable hood, plus waterproof 10,000mm and breathable 5,000g ratings. It is also thermal tested to -30 °C.
Who It Is Best For
This jacket suits buyers who want a womens long jacket with a 3-in-1 setup and a size 14 option. It is also relevant if you want a waterproof outer layer with a removable inner jacket for flexible wear.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product | Mountain Warehouse Alaskan Womens 3 In 1 Long Jacket. |
| Colour | Dark Grey. |
| Size | Women’s Size 14, so check the selected size before ordering. |
| 3-in-1 design | Wear the outer shell, the inner lightweight jacket, or both together. |
| Waterproof rating | 10,000mm for heavy rain resistance as stated. |
| Breathability rating | 5,000g, which relates to how the fabric allows perspiration to pass out of the garment. |
| Taped seams | All seams are taped to support the waterproof construction. |
| Adjustments | Adjustable cuffs and an adjustable hood for fit tuning. |
| Thermal testing | Thermal tested to -30 °C, with performance affected by activity and perspiration. |
| Warranty | Includes a 2-year warranty. |
What To Know Before You Buy
Check the selected size carefully, as this version is Women’s Size 14. The jacket uses a detachable inner jacket and a waterproof outer shell, so it is worth confirming that the 3-in-1 format suits how you plan to wear it.
The waterproof, breathable and thermal figures are stated product ratings, and real use will vary with weather conditions and activity level.
Common Buyer Questions
Can it be worn in different ways?
Yes. It is a 3-in-1 jacket that can be worn as the outer shell, the inner jacket, or both together.
Does it have an adjustable fit?
Yes. The cuffs and hood are adjustable.
Is the jacket waterproof?
Yes. It has taped seams and a stated waterproof rating of 10,000mm.
What size is this version?
This version is Women’s Size 14.
Final Buying View
If you want a womens long jacket with a removable inner layer, taped seams and stated waterproof and breathable ratings, this is a clear 3-in-1 option. Check the size and wear format carefully before ordering.





