Colonius JKT - Green - M
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Product Information
Full details
The Jack Wolfskin Colonius JKT is a premium insulated jacket engineered for adult males seeking reliable warmth in cold environments. It features 700 cuin RDS-certified down filling to provide superior thermal regulation while remaining breathable enough for active outdoor use. While the jacket excels at keeping you warm and shielded from wind, it is primarily designed as a mid-to-outer layer in dry cold and may require a waterproof shell during sustained heavy rainfall.
All features
| Age Group | adult |
|---|---|
| Colour | Green |
| Gender | Male |
| Size | M |
| Model Part Number | 1207431_E0205 |
| Brand | Jack Wolfskin |
Extended Product Information
FAQs
Is the jacket fully waterproof?
No, the jacket is water-repellent, meaning it resists light rain and snow, but it is not waterproof for heavy storms.
What does 700 cuin mean?
This refers to the fill power of the down, indicating its ability to trap air and provide warmth; 700 is considered a high-quality, high-insulation standard.
Can I machine wash this jacket?
Yes, use a gentle cycle with cold water and specific down detergent. Always follow up with a low-heat tumble dry.
Are the pockets deep enough for a large smartphone?
Yes, the hip pockets are designed for standard gear, though the secure inner pocket is recommended for devices.
What is the RDS certification?
The Responsible Down Standard (RDS) ensures that the down used in the jacket comes from animals that have been treated ethically.
Troubleshooting
Down feathers poking through fabric
This is normal for high-loft down products. Gently pull the feather back into the jacket from the inside rather than pulling it out.
Jacket feels less warm over time
The down may have clumped due to moisture. Tumble dry on low with dryer balls to redistribute the feathers.
Pros and Cons
Pros
- Exceptional thermal retention from high-quality 700 cuin down
- Lightweight construction prevents fatigue during long treks
- Effective windproofing keeps core temperature stable
- Practical pocket layout for everyday convenience
Cons
- Not intended for heavy, prolonged rain exposure
- Down insulation requires specific care during cleaning
- Limited to adult male fit sizing
Setup, Compatibility & Care
The Colonius JKT functions best as a standalone outer layer in dry conditions or as a warm mid-layer under a hard-shell jacket in wet, snowy climates. To maintain the loft of the RDS-certified down, store the jacket hanging in a cool, dry place rather than compressed in a stuff sack for long periods. When washing, always use a specialized down detergent and wash on a gentle cycle. To restore the insulation's fluffiness after drying, tumble dry on a low setting with clean tennis balls to prevent the down from clumping.