Quick Summary
The Rab Men’s Cirrus Flex Jacket is a black men’s jacket in size L, built with a slim fit and synthetic insulation. It is presented as a mobile puffy layer with fleece side panels, a Pertex Quantum outer and a YKK Vislon front zip.
The jacket is aimed at climbing, trekking, mountaineering and general use. Key stated figures include a centre back length of 71.5 cm for Medium and a weight of 446 g.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Rab, a recognised outdoor clothing brand name for the product identity. |
| Product type | Men’s jacket with synthetic insulation and a slim fit. |
| Colour | Black. |
| Size | L. |
| Fit | Slim fit, which is worth checking if you prefer layering room. |
| Weight | 446 g. |
| Centre back length | 71.5 cm in Medium. |
| Main insulation | PrimaLoft Silver Rise synthetic insulation. |
| Outer fabric | Pertex Quantum shell fabric. |
| Features | YKK Vislon front zipper, zippered hand pockets and a zippered chest pocket. |
What to Compare Before Buying
- Fit: This jacket is slim fitting, so compare it with the layers you plan to wear underneath.
- Size: The size is L, so check the seller’s size selection carefully before choosing an offer.
- Weight: At 446 g, it has a stated carried weight that may matter if you want a lighter layer.
- Length: The centre back length is 71.5 cm in Medium, so check whether that length suits your preference.
- Use: It is aimed at climbing, trekking, mountaineering and general use, so compare that intended use with your own plans.
Who This Product May Suit
This jacket may suit buyers looking for a synthetic insulated men's layer with a slim fit, fleece side panels and a black finish. It is relevant where mobility matters and where the stated weather-resistant outer and synthetic insulation are part of the buying decision.
When to Consider a Different Option
A different option should be considered if you need a looser fit, a different size, or a jacket with a different length. Buyers who want a different insulation type or a different pocket layout should compare alternatives before choosing.
Before You Decide
Confirm the size is L and the slim fit suits your layering needs. Check the stated weight and length against your preference, and make sure the intended use matches the way you plan to wear it.









