Mythic G Down Jacket

284g (Medium)
Outer Fabric:
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The Mythic G is a lightweight, packable jacket that offers excellent warmth for fast-paced mountain missions in frigid conditions. The Mythic is a highly packable winter jacket with a superb warmth-to-weight ratio. Rab s…

RRP: £449.99
| You save: £70.00 (15%)
20% VAT deducted at checkout for goods delivered outside of the UK
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Product Details

Jump to: Our Verdict / Features / Specifications

The Mythic G is a lightweight, packable jacket that offers excellent warmth for fast-paced mountain missions in frigid conditions. The Mythic is a highly packable winter jacket with a superb warmth-to-weight ratio.

Rab says: 

Next level warmth for minimum weight, this 1000FP down jacket features a visible heat reflective TILT lining. Designed for alpinism and climbing with ultralight construction and body mapped TILT, this jacket pushes performance so you can push yours.

Our Verdict

I was a big fan of last season's Mythic range and was excited to see the new Mythic G. I'm pleased to say it has not disappointed. It's a superb lightweight jacket that utilises some of the most advanced technologies and premium materials on the market

The Mythic G has been constructed from a super light 7-denier Atmos outer, treated with a fluorocarbon-free DWR, that helps repel light rain and snowdrift, with a 7-denier ripstop liner treated with Tilt technology. Rab's TILT (Thermo Ionic Lining Technology) is a new fabric that reflects heat to the body, making outdoor gear like sleeping bags and down jackets warmer without adding weight or affecting breathability. Up to 30% warmer than untreated gear, TILT fabric is made by bonding titanium to nylon fibres. The Mythic G is filled with 127 grams (based on the medium size) of incredibly high quality, 1000-fill power European goose down. 

The features on the Mythic G have all been stripped back to be as lightweight as possible but without compromising on performance. I am a big fan of the down-filled hood; it's incredibly comfortable, and you get instant warmth when you put it up. The hood has an elasticated face opening but no other form of adjustment, a protective stiffened peak, and a soft and comfortable fleece-lined chin guard.

The Mythic G has two hand-warming pockets discreetly concealed in the baffles of the jacket. These are of a good size and provide a lot of warmth. The cuffs of the Mythic G are partially elasticated, and the hem of the jacket can be cinched with a single-sided rear hem adjustment.

- Reviewed by Ultralight Outdoor Gear


  • Body mapped TILT lining improves heat retention and enables thermoregulation
  • Stitch-through construction reduces weight and improves breathability and mobility
  • Down-filled hood with part elasticated opening and protective stiffened peak
  • Precurved and articulated sleeves for improved fit and movement
  • Lightweight YKK® VISLON® centre front zip with fleece lined chin guard
  • YKK® concealed zipped hand pockets
  • Lightweight part elasticated cuffs for optimum fit and reduced bulk
  • Lightweight single sided rear hem adjustment with anti snag tether
  • Supplied with a lightweight stuff sack


  • Small Weighs: 271g
  • Medium Weighs: 284g
  • Large Weighs: 301g
  • XLarge Weighs: 319g
  • Fit: Regular
  • Centre back length (Size M): 72cm / 28.3inch

Material & Construction

  • 7D Atmos™ nylon ripstop (23gsm) with fluorocarbon-free DWR
  • 7D ripstop nylon with Thermo Ionic Lining Technology (TILT) (23gsm)
  • 1000FP European Goose Down (127g / 4.5oz, Size M)
  • Fabric Composition Main: 100% polyamide, Lining: 100% polyamide with metal coating, Filling 90% Down Goose 10% Feather

Help & advice:

Mythic G Down Jacket

Mythic G Down Jacket

RRP: £449.99
| You save: £70.00 (15%)
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What is Thermo Ionic Lining Technology?

Outdoor gear designed to keep you warm, such as sleeping bags and down jackets, does so by trapping air near your skin; this air is warmed by heat radiating from your body, creating a warm layer of air around you. Most of the heat from your body is lost to the atmosphere, Rab has been looking at how to capture more of that energy without having a weight penalty on their sleeping bags.

This new fabric that Rab calls TILT (Thermo Ionic Lining Technology) is applied to the inner lining of their new Mythic sleeping bags range and the Mythic range of down jackets. This reduces radiative heat loss by reflecting heat towards the body, resulting in increased levels of warmth. This dramatically increases the Mythic range’s warmth-to-weight ratio without changing the original fabric's properties or increasing the weight. This is the golden ratio for us here at Ultralight Outdoor Gear if you can improve the insulating properties of a piece of kit without adding any weight to it, you're going to get two thumbs up from us!


Accurate weights of items are vital to us here at Ultralight. We want you to be confident in making decisions on which gear to buy if you’re a gram-counter like us.

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