Helikon Chinook Jacket — 20K Waterproof
Helikon Chinook Jacket — 20K Waterproof
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20K Packable Waterproof Jacket for Outdoor, Travel & Weather Backup
Product Highlights: 20,000 mm waterproof rating • 20,000 g/m²/24h breathability • 2.5-layer membrane • DWR finish • approx. 400 g (size L)
Helikon Chinook Jacket is a lightweight 20K waterproof rain shell for rainy days, strong wind and fast-changing weather. The 2.5-layer breathable membrane, taped seams and covered zipper construction help reduce rain entry, while the 20K breathability rating helps moisture move out during active use. It is a practical outer layer for hiking, travel, commuting, training and outdoor work when you need dependable weather backup without carrying a heavy shell.
Chinook sits between a simple windbreaker and a more technical hard shell: it gives stronger rain coverage than a basic light jacket, but remains light, packable and easy to keep ready. The included transport bag makes it convenient to store in a backpack, vehicle kit or gear bag. Black is discreet for daily use, Coyote and Dark Green give a stronger outdoor gear look, and Shadow Grey works well for a cleaner low-profile city setup.
Key Features
- 20K waterproof rating: 20,000 mm rating gives useful coverage for heavier rain, long wet-weather periods and sudden weather changes
- 20K breathability: 20,000 g/m²/24h vapor permeability helps release moisture during walking, hiking, training and active daily use
- 2.5-layer membrane construction: keeps the jacket lighter and easier to pack while supporting rain, wind and breathability performance
- Taped seams and covered zippers: help reduce water entry through seam and zipper areas during wet-weather use
- Underarm ventilation: can be opened quickly to release heat when activity level rises or the weather feels humid
- Adjustable hood, cuffs and hem: let you fine-tune the fit around weather conditions, layering and movement
Recommended Use
- Hiking, camping, travel and backup outer-layer use in changeable weather
- Urban commuting, outdoor work, training and long hours of outdoor activity
- Users who need a lightweight rain shell with wind coverage and breathability
- Layering with fleece jackets, insulating mid-layers, tactical pants or outdoor backpacks
Useful Details
- Waterproof rating: 20,000 mm
- Breathability: 20,000 g/m²/24h
- Construction: 2.5-layer membrane
- Finish: DWR finish
- Weight: approx. 400 g (size L)
- Fit: Regular Fit
- Colors: Black / Coyote / Dark Green / Shadow Grey
- Care: gentle wash below 30°C; do not bleach, tumble dry, dry clean or iron
Frequently Asked Questions
How is Chinook different from a basic windbreaker?
Chinook is built as a 20K waterproof shell rather than a simple wind layer. The 2.5-layer membrane, taped seams and covered zipper construction give stronger rain coverage, while the lightweight build keeps it easier to pack than a heavy hard shell.
What do the 20K waterproof rating and 20K breathability mean in real use?
The 20,000 mm waterproof rating supports use in stronger rain, while the 20,000 g/m²/24h breathability rating helps moisture escape during movement. For hiking, commuting, training or outdoor work, this balance helps keep the jacket protective without feeling overly heavy.
What weather is this jacket best suited for?
It is best suited to wet, windy and fast-changing weather when you want a lightweight shell ready in your bag. Adjust warmth with a fleece, insulating mid-layer or base layer underneath depending on the temperature.
Is it too heavy to carry as a daily backup jacket?
No. At approx. 400 g in size L and with an included transport bag, it works well as a packable weather layer for a backpack, vehicle kit or travel bag.
How should I choose between the four colors?
Black is the most discreet option for commuting and city outfits; Coyote gives a stronger outdoor gear look; Dark Green pairs naturally with hiking packs and military-style pants; Shadow Grey is clean and low-profile for users who prefer a grey outer layer.
