Rab Mens Cirrus Flex 2.0 Vest

Slim Fit. When in doubt, choose a larger size

All about this product



Whether you’re using it as a mid or outer layer, the advanced Primaloft Silver Luxe synthetic insulation within Rab's Cirrus Flex 2.0 Vest provides down-like warmth, lightweight packability and resilient loft in changeable mountain weather. Quick-drying and clump-free, the insulation is evenly distributed throughout the micro-baffles for reliable insulation and an athletic, slim fit. Movement and breathability are a major strength, thanks to flexible, moisture-wicking Thermic stretch fleece side panels. For extra convenience, this highly versatile vest also features two internal stash pockets, a cord lock adjustable hem and an integrated stuff sack built into the left-hand pocket.

From mountain hiking and winter walking to scrambling, climbing and via ferrata, this versatile, low-maintenance and sustainable piece will always merit a place on your kit list.

Technical details

  • Ideal use: Mountaineering, hill walking, multi-day trekking
  • Materials:
    • Main: 100% Recycled Pertex Quantum 20D polyamide ripstop
    • Lining: 20D Recycled Atmos polyamide ripstop
      • 94% Polyester
      • 6% Elastane
    • Insulation: PrimaLoft Silver Luxe
    • PFC-Free Durable Water Repellent (DWR) finish
  • Micro-baffle stitch through construction
  • Stretchy and breathable side panels
  • 2 Inner open ended stash pockets
  • Single cord hem adjustment
  • Semi-elasticated armholes
  • Covered YKK pocket zips
  • Packs away into pocket
  • YKK Centre zip
  • Lightweight
  • Breathable
  • Fit: Slim
  • Weight 258.5g


Insulation Type
Polyamide, Polyester


Technical features
Insulated, Stretch, Water repellent, Wind resistant
Garment features
Adjustable hem, Full zip, Packable, Pockets, YKK Zips


Weight (g)
Size recommendation
Slim Fit. When in doubt, choose a larger size

Other features

Ideal For
Hiking, Mountaineering, Trekking
Product Code
Reviews (215)

User Reviews (215)

Our Planet
Our Planet logo
This product has features that impact at least three of our environmental areas.


This product is made from materials such as recycled, organic, alternative (fast renewable raw materials), a combination of these and/or does not intentionally contain any chemicals.
At least 50% Alternative Combination
At least 50% Recycled Synthetics
No PFCs or PFAs


This product as a whole or the individual materials within this product have the following certification(s). These are voluntary guidelines used to demonstrate their commitment to good environmental, social, ethical, and food safety practices.
Climate Neutral
Fair Wear
Global Recycled Standard


This product complies with the following feature(s) aimed at eliminating waste and maximising resource reuse.
Easy to Repair
Minimum of 4 Years Guarantee

About this brand


The Rab story began in 1981 in the attic of a small, terraced house in Sheffield where Rab Carrington made the first sleeping bag to bear his name. Hand-stitched and devised with his own ingenious eye, Rab's experience from years spent in the mountains was apparent in his designs, and soon there was popular demand from Rab's friends and the growing local climbing community. Now, decades later, those honest, hard-wearing designs can be found all over the world; wherever adventurous individuals face up to the elements. From Himalayan peaks to cold, crisp evenings around a camp fire. This began as the brand's story, but it also belongs to those who've loved and cared for each and every one of our products. Who've made them their companions on long trips and expeditions. 


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