Quick Summary
The Mountain Warehouse Alaskan is a women’s 3-in-1 jacket in dark burgundy, size 20. Its detachable inner jacket can be worn alone or with the outer shell; the shell is described as waterproof and breathable, with taped seams.
The listing also gives a 10,000 mm waterproof specification and a -30 °C thermal-tested claim. The latter is not a promise of comfort at that temperature: the listing notes that health, activity and perspiration affect performance.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand and model | Mountain Warehouse Alaskan, model 050771277008. |
| Configuration | Outer shell and detachable lightweight inner jacket. Wear either separately or together. |
| Waterproof specification | 10,000 mm, as stated in the listing. This is the product’s stated specification, not a guarantee for every condition. |
| Seams | Fully taped, according to the listing, to help limit water entry at the seams. |
| Hood and cuffs | The hood has cinch cords; cuffs adjust with hook-and-loop fastenings. |
| Pockets | Zipped pockets. |
| Thermal claim | Laboratory thermal tested to -30 °C. The listing says health, physical activity and perspiration affect performance; test conditions are not detailed. |
| Variant | Size 20, dark burgundy; the listing states one item. |
| Warranty | A two-year warranty is stated. Check its terms for the selected product. |
Key Features Explained
The three wearing arrangements let you choose the shell, inner jacket or both together. IsoDry is described as waterproof and breathable technology intended to let internal moisture escape while shielding against water. The listing does not give a separate breathability measurement.
The adjustable hood and cuffs allow some fit adjustment. They do not establish a particular fit, so check how they sit when the jacket is worn over the layers you expect to use.
What to Compare Before Buying
- Fit: Confirm that size 20 is the intended size and check any available garment measurements or fit guidance.
- Layer arrangement: Consider whether you want an inner jacket, a shell, or both. Check the product details if the way the layers attach is important to you.
- Weather needs: Compare the stated 10,000 mm waterproof specification with the conditions you expect; do not treat the thermal-tested figure as a guaranteed comfort temperature.
- Variant: Confirm the dark burgundy colour and model number if matching a particular item matters.
Planning Layer Combinations
Before heading out, try the jacket in the arrangement you expect to wear and check its fit over your usual layers. You can also adjust the hood and cuffs and see whether the zipped pockets suit the items you plan to carry. This is a practical fit check, not a test of weather performance or a recommendation for a particular temperature.
Before You Decide
Confirm size 20, dark burgundy and model 050771277008. Consider whether the shell, inner jacket or both together and the stated waterproof specification match your needs. Read the warranty terms and available fit guidance before choosing.









