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Providing you with the warmth of an insulated down jacket with the fully waterproof reassurance of a reinforced Drilite outer, the Triton is ideal for our unpredictable UK conditions.
Providing you with the warmth of an insulated down jacket with the fully waterproof reassurance of a reinforced Drilite outer, the Triton is ideal for our unpredictable UK conditions.
Mountain Equipment

Mountain Equipment Womens Triton Jacket Cosmos

£162.00 £270.00 40% off
in Customer Rewards when you buy this item today

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We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Mountain Equipment Womens Triton Jacket Cosmos


Brand:Mountain Equipment


What is the Triton Jacket?

The Triton jacket is a narrow baffle, 700 fill power down jacket with a Drilite waterproof outer. You get the luxury and lightweight performance of a pure down jacket with the practical reliability of a waterproof shell. This versatile jacket is the perfect all-rounder for everyday life straight through to mountain days in winter conditions.

What is it made of?

Insulation: M.E use a high-quality 700 fill-power down inside the Triton. The Pure Down insulation is captured in a stitched through narrow baffle construction to maximise loft and performance. Following on from M.E's well known Codex project, they have now introduced their Earthrise and Down Cycle project. It is all part of M.E's commitment to do business more sustainably. It is all about turning waste into warmth, hence why the Triton is made up of 100% recycled down as well as 100% recycled shell and lining fabrics. By doing this they are vastly reducing the carbon footprint of making down products and reducing the amount of down that ends up in a landfill.

Fabrics: Surrounding all this lovely down is a fully waterproof Drilite membrane.Drilite uses a solid-state micron thin Polyurethane membrane laminated to a tough 50D nylon face fabric making it strong enough for all-mountain activities. As well as this, it features a durable water repellent coating which will repel water, causing it to bead off the jacket. This reliable fabric has a good rate of breathability allowing moisture to escape, however, the Triton would be just too hot and sweaty for highly active mountain activities.

What are its features?

Features wise, you get a fixed and fully-adjustable Mountain Hood (which is intended for use without a helmet) a high-quality 2-way YKK Aquaguard front zip, two zipped hand pockets, a zipped Napoleon chest pocket and an internal security pocket — plenty of space to stash your bits and bobs. You've also got some dual-tether hem drawcords and velcro cuffs to seal in valuable warmth on cold outings.

Where does it fit in the layering system?

The Triton is designed solely as an outer layer. The combination of a waterproof membrane and super toasty down insulation means there's no need to layer over the top in UK conditions.

  • Recycled content
  • Stitched-through narrow baffle internal construction
  • Adjustable Mountain Hood
  • 2-way YKK moulded Aquaguard centre front zip with internal storm flap
  • 2 zipped handwarmer pockets with internal storm flap
  • Napoleon chest pocket with storm flap
  • Inner zipped security pocket
  • Adjustable cuffs and adjustable dual tether hem drawcords
  • Recycled 2 layer DRILITE 50D fabric with PFC - free DWR

How to wash your down products

Having spent years talking to people about down products, whether that’s a jacket, sleeping bag or even a pair of slippers, very few have had the confidence to go ahead and wash the product on their own, especially when they have just spent an arm and a leg on it. This small guide is here to explain that it’s not as daunting and utterly terrifying as it first appears.

Step one: Before you even get near that washing machine, wipe off any excess mud or dirt that may be lingering on the surface of the jacket, as this will clog up the washing machine, eventually rendering it useless.

We recommend the use of Nikwax Down Wash Direct for down products as it’s one hundred percent environmentally friendly and will wash and re-proof the garment without the use of bleach or any other nasty chemicals. What household washing agents can (and often do) is remove the water repellent coating on the fabric of the jacket, whilst also damaging the delicate array of feathers inside.

Step two: We’ll assume in this instance that you’ve been washing other products prior to your down jacket and have used a bleach based detergent. Therefore it’s a good idea to run the washing machine for half an hour or so without anything inside to rinse it clean before adding the Nikwax or putting the jacket in. Also, don’t forget to remove the detergent drawer to give it a wash inside, outside and behind, as detergent can clog up and still enter the washing machine if not cleaned out thoroughly. This ensures that any remnants of detergent are removed and that the Nikwax products will work effectively.

Step three: Set the washing machine to a cold wash (check the garments care label, most tend to be around 30°C) and as delicate as possible. Most washing machines have a “wool” cycle which is ideal.

Step four: If using Nikwax Down Wash Direct, place 100ml in either the tray or directly into the washing machine inside a small pot/ball. If you choose to use another washing product, place the appropriate amount in the machine in the same way.

Step five: Set the washing machine to run on a slow cycle, allowing plenty of time for the jacket to soak up the cleaning/re-proofing product. Most washing machines will have a pre-set time for different washing cycles.

When the cycle has finished be prepared for a shock, your precious bit of kit will come out looking like a soggy ball of material. But don’t worry, you haven’t ruined it, it’s just that all that fluffy down insulation has become water logged and has clumped together. The trick is to now get all that down nice and dry to reinstate its superb insulating properties. Simply hanging it up in a warm place will not work that well. It will take days to properly dry and you will have to constantly break up the clumps to get it thoroughly dry. The best way is to use a tumble dryer; either a domestic one for smaller items or a commercial drier for sleeping bags.

Step six: Pop the garment into the dryer and make sure to select a low heat; a high heat runs the risk of melting seams and fabrics within the garment. It sounds weird, but shove a few tennis balls into the drier with the garment; the tennis balls will bounce around and help to break up the clumps of down. Every 20 minutes, pull the jacket out of the dryer and lie the jacket down on a table. Run your hands over the jacket until you find a 'clump' or ball of down; tease apart this down clump and spread it evenly into the baffle. Once you're confident you've pulled apart every clump to the best of your ability, stick it back in for another 20 minutes. Keep repeating this until there are no more clumps left. 

Step seven: When the cycle has finished and you are sure that you have got the garment as dry as possible, hang it up in a warm dry place, an airing cupboard is ideal, for 24 hours. This drives out the last of any dampness and allows the down to loft fully. Take it out and give it a good shake and, hey presto, it’ll be as good as new.


Technical Information
Weight: 720g
Insulation: 700 fill-power recycled down
Fabrics: 50D recycled polyester outer, recycled nylon inner
Sizing Information

Click here for the manufactures size charts.

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