Built for reaching frost shattered summits in the biting cold, this ultralight down jacket offers alpinists and mountaineers impressive warmth and mobility.
The Alpine Jacket in our Mythic series is designed for those moving fast and light. For those who want an extremely warm down jacket you can climb in, stash easily, and throw on when you need an instant boost of heat. Shaving grams wherever possible it has lightweight, low bulk, stitch-through construction to stabilise the down while allowing excellent breathability. Squares around the core maximise warmth while regular baffles on the sleeves improve mobility. Pre curved and articulated the sleeves have also been designed to allow easy arm lift, movement, and articulation for climbing.
To keep weight at a minimum we used an ultralight 10D outer which is 100% recycled. This Pertex® Quantum fabric with built-in ripstop is strong, durable, weather protective and feels soft to the touch. Slim-fitting and low bulk, the jacket layers easily under a shell and helps manage moisture through your gear, perfect for moving at pace. When a balance of weight, mobility and warmth are critical for success, the Mythic Alpine Jacket is the ultimate choice.
Mythic Collection
Achieving exceptional levels of warmth to weight and incorporating our cutting edge TILT technology for the first time, this collection features the lightest and warmest jackets we've ever made.
Fluorocarbon-Free Product
This product no longer contains fluorocarbons. Whether that’s in a DWR, on the zips, the threads or in the fabric. Find out more about how we’re cutting fluorocarbons from our gear.
Pertex® Quantum
A soft, lightweight, windproof fabric that encourages insulation to fully loft. Highly packable and protective, it's ideal for mountain activities.
Fill Power - 900
Fill power is all about down quality, not quantity. Find out more about what fill power means for you when you're out in the mountains in cold conditions.
What is hydrophobic down?
We finish all our down with a hydrophobic treatment that enables it to retain its loft in damp conditions, so that your gear dries fast and stays warm. Find out how it works. *With the exception of our 1000FP down.
RDS Certified Down
The Responsible Down Standard independently certifies down against animal welfare requirements and tracks it from the source to the final product.
100%
of reviewers would recommend this product to a friend
Customer photos and videos
16 Reviews
CO
C O.Reviewed by C O.
Verified Buyer
I recommend this product
Age Range
45 - 54
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted
Perfect
Not yet tested in the mountain but trying this in at home it’s exactly what I was hoping for and as described on site and it reviews. Lightweight, packable and extremely warm. The cut and fit is excellent. I can’t wait to get to Japan in January with it. Not cheap but reasonable discount of RRP so not too bad and I think will be worth it.
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PhilReviewed by Phil
Verified Buyer
I recommend this product
Age Range
55 - 64
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted
Rab Puffer Jacket
Amazing puffer, great quality and worth paying a premium for this product.
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Bo D.Reviewed by Bo D.
Verified Buyer
I recommend this product
Age Range
55 - 64
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted
Nice, warm and light
Very nice jacket. Very light and packable. I bought this for travel to those European winters. Cannot wait !
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Daniel S.Reviewed by Daniel S.
Verified Buyer
I recommend this product
Age Range
45 - 54
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted
Outsanding warmth for weight!
Loving this jacket - super warm and soft, but lightweight and packs reasonably small (the stuff sack could be a bit smaller as it could pack in less volume). Lightweight outer fabric may mean it isn't as durable as others, but that is the tradeoff for such a light jacket. Look carefully at the sizing chart rather than just the size label (I'm in one size larger than I am for many other brands (based on the measurements from Rab) and it is a good fit.
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Andrew R.Reviewed by Andrew R.
Verified Buyer
I recommend this product
Age Range
55 - 64
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted
Fit for purpose
Wore this to Everest base camp and it was perfect, breathable, not sweaty but nice and warm. Spot on sizing so was able to layer up and layer down as required. Highly recommend 🗻