Basement - Montane Chonos Ultra Down Jacket

250g of 800+ Fill Power Down (US Method) / Pertex Quantum / HyperDRY ECO Down
Weighs 680g (Medium size)
Code: AW16196
  • Now £167.99
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Item out of Stock | Usually dispatched within 24 hours

Montane Womens Lite-Speed Jacket

The Montane Chonos Ultra Down Jacket uses the very best Box Wall construction method to maximise the effectiveness of the down combined with lightweight fabrics to keep the total weight to a minimum for this high performing jacket. 

Montane says:

Built for high altitude and extreme cold conditions, the Chonos Ultra Down Jacket combines high quality water resistant fluorocarbon-free HyperDRY™ ECO goose down and a unique PERTEX® Quantum Y Yarn outer shell fabric to create a supremely warm, lightweight and packable weather resistant boxwall jacket. The Chonos Ultra Down Jacket has minimalist weight saving features including a tailored ‘active mountain’ fit that prevents the hem raising whilst reaching high, a fully adjustable helmet compatible hood that can be easily stowed away, two deep A-line hand-warmer pockets and its own waterproof dry bag.

Montane Logo at Ultralight Outdoor Gear| Click here for more info on Montane, product updates and New Season information.

Montane have recently updated all their down products with HyperDry ECO. This flurocarbon-free down exhibits an optimal blend of water resistance, fill power, durability, cleanliness and washability while diminishing it's impact on the environment.

The Chonos Ultra Down Jacket employs a range of features to achieve a very low weight for a fully featured down jacket with Box Wall construction containing 250grams of down. The use of super lightweight fabrics and a mountain cut are two ways in which weight is saved - but in all other respects weight is added so as not to compromise on features.

For example the box wall construction adds a lot of weight comparatively speaking but really enhances the performance of the jacket compared to most other down jackets (which use stitch through construction). Box wall creates better pockets for the down to loft into with fewer 'pinch points' and cold spots to compromise performance - its a much more effective construction technique, but its also much more expensive to produce.

The other features are pretty standard for a technical jacket - the cuffs are elasticated (presumably to save a bit of weight). The hood has a wired peak and a simple velcro volume adjuster. Its a relatively close fitting garment which also preserves a high level of performance.

- Reviewed by Ultralight Outdoor Gear

Help and advice:All about down filling in sleeping bags


  • Constructed from PERTEX® Quantum Y Yarn which provides enhanced downproof properties and a strong tear strength
  • Features a Super 100 DWR that provides excellent water shedding through extended periods of wear
  • Updated with 250g of high quality 90/10 Allied Feather & Down Titanium water resistant fluorocarbon-free HyperDRY™ ECO goose down at 800+ fill power, certified non live plucked and non force fed
  • PERTEX® Quantum Rip-stop lining throughout ensures the jacket is incredibly lightweight
  • Full boxwall construction provides superior warmth and eliminates cold spots


  • Technical tailoring to prevent arm lift raising the lower hem whilst reaching high
  • Articulated arms with engineered tailoring to prevent seams constricting over elbows and biceps


  • The premium down inside this product has been certified through the Responsible Down Standard (RDS) to ensure that it is the most responsibly sourced down available
  • Track my Down™ for comprehensive traceability information about the down used in this product


  • Fully adjustable insulated climbing helmet compatible hood
  • Hood lined with PERTEX® Quantum Y Yarn for additional water repellency
  • Hood visor stiffened with a foam insert and a wire on the lip for adjustability
  • Internal elastic loop and hook on rear hood compression drawcord allows hood to be rolled down and stowed away whilst not in use in windy conditions


  • Two deep A-line hand-warmer pockets
  • External zips feature U-shaped pulls for use with gloves or mitts


  • Full length, reversed and baffled two way YKK front zip for ease of use with a backpack or climbing harness


  • Lower adjustable hem to prevent spindrift entry and heat loss
  • Montane ‘penny cordlocks’ on lower hem sides to create a low profile for comfort under climbing or rucksack harness


  • Own waterproof storage Montane dry bag
  • PERTEX® Quantum Y
  • PERTEX® Quantum Rip-stop
  • Allied Feather & Down Titanium HyperDRY™ ECO
  • Fit: Active Mountain
  • Small weighs: 654g
  • Medium weighs: 680g
  • Large weighs: 700g
  • XLarge weighs: 726g


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