Rime IN Flex Hooded Jacket

Insulation Type:
Ajungilak OTI Stretch
466g (Medium)

A fantastic all-rounder, which strikes a perfect balance between durability and warmth and that is why we have singled it out as one of our top picks for this winter season.     Mammut says When temperatur…

RRP: £234.99
| You save: £30.00 (12%)
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A fantastic all-rounder, which strikes a perfect balance between durability and warmth and that is why we have singled it out as one of our top picks for this winter season.    

Mammut says

When temperatures drop, the Rime Flex Jacket with helmet-compatible hood is the right option in cold and wet conditions. The Rime Flex is the warmest synthetic fiber insulting jacket in our collection and features a special, sustainably produced synthetic filling: a combination of recycled polyester fibers and Sorona™ fibers from renewable plant materials. Its special structure keeps you warm and also has elastic properties. Stretch fibers and a slightly lower insulation density on the arms ensure that you can move freely. Thanks to the synthetic fiber filling, the jacket still keeps you warm when it gets wet. The nylon fabric outer shell is very hard-wearing at minimal weight and offers light weather protection. The Pertex® Quantum Air lining makes the jacket particularly breathable, extremely light and compressible. You can wear the jacket as an outer layer in cold conditions or carry it in your backpack, ready to warm you up during rest stops.

Our Verdict

The Mammut Rime IN hooded jacket is Mammuts warmest synthetic jacket that is designed to be durable, breathable and warm, making a go to jacket for winter activities whether on the move or standing on a belay ledge. 

The outer fabric has a nice matt finish, but also offers a good level of durability for when you are in the mountains. Using the Pertex® Quantum Air lining the jacket also becomes very breathable which prevent you from overheating while on the move, but also prevents the build of moisture that becomes freezing the moment you stop. 

The Ajungilak® OTI stretch insulation is made from a combination of recycled Polyester and Sorona which is made from renewable plant materials, provide both an excellent level of warmth and also are helping to make this more of a eco-friendly product. 

The overall fit is technical with a great range of movement that makes it ideal for winter climbing or scrambling as well as just being a nice fitting jacket. There is still a good amount of room to fit layers underneath so it can be used as both a outer-layer or in combination with a shell to make it a mid-layer. The pockets are a decent size and you will get all your essentials in there. The hood is helmet compatible with an interesting elasticated mesh section in the peak that helps hold the hood on to a helmet really well. 

this jacket is a fantastic choice for any winter activity with both a good level of warmth and the breathability making it very versatile. 


- Reviewed by Ultralight Outdoor Gear


  • Woven main material made from 20-denier nylon 
  • Filled with 80 g Ajungilak® OTI stretch insulation on the body and 60 g on the arms and inside the hood for optimum heat retention and enhanced freedom of movement 
  • Adjustable, helmet-compatible hood 
  • Chest pocket with concealed zipper 
  • YKK Vislon® 2-way zipper for smooth operation 
  • 2 backpack and climbing-harness-compatible zipper pockets 
  • Elastic cuffs 
  • Hem drawstring can be adjusted with one hand 
  • Jacket can be stowed in side pocket


  • Medium weighs: 466g

Materials & Construction

  • Lining 1 (B2B): Pertex® Quantum Air 
  • Lining 1 - Face Material (B2B): 100% Polyamide 
  • Main Fabric 1 (B2B): Polyamid woven downproof 
  • Main Fabric 1 - Face Material (B2B): 100% Polyamide
  • Ajungilak® OTI Stretch
  • Cut: Regular fit


  • Ethically made
  • PFC free
  • Bluesign certified

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Rime IN Flex Hooded Jacket

Rime IN Flex Hooded Jacket

RRP: £234.99
| You save: £30.00 (12%)
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