Womens Mythic Ultra Down Jacket

474g (size UK 12)
Outer Fabric:
Pertex Quantum
Fill Weight:
Fill Power:
Down Treatment:
Baffle Type:

UOG TOP PICK - Rab Mythic Ultra Jacket - Chosen because of the use of key technologies to improve performance, high quality down, TILT reflective technology and offset baffles mean that this jacket gets the absolute maxi…

RRP: £419.99
| You save: £65.00 (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

UOG TOP PICK - Rab Mythic Ultra Jacket - Chosen because of the use of key technologies to improve performance, high quality down, TILT reflective technology and offset baffles mean that this jacket gets the absolute maximum available insulation out of the down within it.

Rab says: 

Extraordinary warmth for minimum weight, this Pertex Quantum down jacket is a gamechanger for alpinists. Combining TILT tech with 900FP down and offset baffle construction, it's our warmest lightweight down jacket yet, the product of extensive R&D

Our Verdict

Rab's Mythic Ultra Down Jacket packs in a lot of technology, lets start with offset box wall baffles which ensure there are no cold spots from stitching through both outer and inner, most often found on heavier expedition weight jackets. Next Rab's TILT technology which reflects heat back to the body which would have otherwise been lost, and finally the sheer quality of the down, almost the best quality available at 900FP. What's not to like?

High quality construction with super lightweight fabric, hand pockets and a chest pocket, decent hood which is helmet compatible but not so big that it doesn't fit well when not wearing a helmet.

- Reviewed by Ultralight Outdoor Gear

In-depth Reviews:


  • Body mapped combination of offset box wall and stitch through construction optimises warmth for minimum weight
  • Offset box wall construction utilising TILT internal scrim on torso reduces air flow through the jacket and decreases radiant heat loss
  • Helmet compatible down-filled hood with rear elastication, concealed internal adjustment and stiffened peak for increased protection
  • 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 and chest pocket
  • Lightweight cuff elastication for optimum fit and reduced bulk
  • Lightweight dual sided rear hem adjustment with anti snag tether
  • Supplied with a lightweight stuff sack
  • Fit: Regular


  • XSmall (UK 08) weighs:450g
  • Small (UK 10) weighs: 460g
  • Medium (UK 12) weighs: 474g
  • Large (UK 14) weighs: 490g

Material & Construction

  • 10D Recycled Pertex® Quantum nylon ripstop (28gsm) with fluorocarbon free DWR
  • Lining: 10D Recycled Pertex® Quantum nylon ripstop (28gsm)
  • Secondary Lining: Scrim: 100% polyester scrim with aluminium coating (15gsm)
  • Main Insulation: 900FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (220g / 7.8oz, Size 10)
  • Centre back length (Size 10): 73cm / 28.7inch

Help & advice:

Womens Mythic Ultra Down Jacket

Womens Mythic Ultra Down Jacket

RRP: £419.99
| You save: £65.00 (15%)
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What is Thermo Ionic Lining Technology?

Outdoor gear that is designed to keep you warm, and does so by trapping air near to your skin, this air is warmed by heat radiating from your body creating a warm layer of air around you. The majority 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.

Rab's new fabric, TILT (Thermo Ionic Lining Technology), is used in the inner lining of their top-of-the-line sleeping bags, sleeping mats and down jackets. This technology reflects heat back toward the body, reducing radiative heat loss and increasing warmth. It significantly improves the warmth-to-weight ratio without altering the fabric's original properties or adding weight. At Ultralight Outdoor Gear, we prioritize this balance - enhancing the insulating capabilities of gear without increasing its weight. Improvements like these earn our enthusiastic endorsement.


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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