Light and packable, the Cirrus Flex is the ultimate year-round synthetic insulation. Its versatile...Light and packable, the Cirrus Flex is the ultimate year-round synthetic insulation. Its versatile enough to accompany you on any mountain adventure, either as an outer in the warmer months or as an insulating layer when the temperatures drop. With its hallmark fleece side panels that breathe on the climb and reduce bulk, its easy to layer and offers superb freedom of movement. Re-engineered with high-lofting PrimaLoft Silver RISE insulation, it features larger baffles that allow the insulation to loft more and retain more heat. Delivering exceptional warmth for weight, the insulation recovers quickly when wet, making it the ideal choice for your hikes, climbs, and scrambles in damp weather.
The Rab Men's Cirrus Flex Hooded Jacket is the perfect blend of warmth, breathability, and versatility. Filled with PrimaLoft® Silver Insulation, this lightweight jacket provides reliable warmth even in damp conditions. Its Thermic™ stretch fleece side panels enhance breathability and freedom of movement, making it ideal for high-output activities like hiking, climbing, or as a layering piece in colder climates. With its under-helmet hood, packable design, and durable materials, the Cirrus Flex Hooded Jacket is built to adapt to changing conditions while keeping you comfortable on every adventure.
Mobile Puffy | Synthetic insulator featuring enhanced mobility for climbing, trekking, or general use all year long. Down-Like Synthetic Insulation | While looking and feeling like down, PrimaLoft Silver Rise insulation is actually synthetic for greater resilience in damper environments. Fleece-Paneled Windproof & Water-Resistant Outer | Pertex Quantum shell fabric offers sufficient weather protection, and stretchy fleece side panels improve mobility. Mountain-Ready Features | Slim fit sits close to your body for better packability while articulated sleeves enhance movement. Under-helmet hood has a hybrid construction including fleece. Specs | [Activities] Climbing, General Use, Trekking, Mountaineering; [Fit] Slim; [Centre Back Length] (Medium) 71.5cm; [Weight] 446g; [Material] (Main) 100% Recycled Polyamide, Fluorocarbon Free DWR; (Sides) 94% Polyester, 6% Spandex
Men's Rab Cirrus Flex Hooded Jacket - Blue - Size S - Primaloft Synthetic Insulation - Helmet Compatible - Packable - Hiking - ClimbingFree delivery in 1–3 days£160.00Visit shop →
Product Information
Full details
The Rab Cirrus Flex Hooded Jacket is an ideal choice for active outdoors enthusiasts seeking a versatile, lightweight, and warm synthetic insulation layer. Its key strength lies in its ability to provide warmth even when damp, combined with excellent breathability for high-output activities. While highly adaptable for year-round mountain adventures, users should note its slim fit is designed for layering and active movement.
All features
Age Group
adult
Colour
Blue
Gender
Male
Material
Fleece
Model Part Number
QIO-68
Brand
Rab
Extended Product Information
FAQs
Is the Rab Cirrus Flex Hooded Jacket waterproof?
No, the jacket is not fully waterproof. It features a Pertex Quantum shell fabric with a Fluorocarbon Free DWR (Durable Water Repellent) finish, which makes it windproof and water-resistant. This means it can handle light rain and snow, but it is not designed for heavy downpours. For truly wet conditions, pair it with a waterproof outer shell.
What kind of insulation does this jacket use?
The jacket uses high-lofting PrimaLoft Silver RISE synthetic insulation. This material is designed to provide excellent warmth for its weight, mimic the feel of down, and crucially, maintain its insulating properties even when it gets wet. This makes it ideal for damp or unpredictable weather.
Can I wear this jacket year-round?
Yes, its versatile design allows for year-round use. It can function as a standalone outer layer in milder weather or as a highly effective insulating mid-layer during colder months. The combination of warmth and breathability makes it adaptable to various conditions and activity levels.
How should I wash and dry my jacket?
Machine wash cold on a gentle cycle using a technical cleaner for synthetic insulation. Avoid fabric softeners. Close all zippers and fasteners before washing. Tumble dry on low heat with dryer balls to help restore the insulation's loft. Ensure the jacket is completely dry before storing it.
What activities is this jacket best suited for?
The Rab Cirrus Flex Hooded Jacket is ideally suited for a range of mountain activities including climbing, trekking, hiking, and general outdoor use. Its blend of warmth, breathability, and freedom of movement makes it perfect for high-output pursuits in variable conditions.
Does the jacket come with a stuff sack?
Info needed: The product description highlights its packable design, suggesting it compresses well. However, it does not explicitly state whether it includes a dedicated stuff sack or if it packs into its own pocket. Check product packaging or specifications for this detail.
What is the fit like?
The jacket features a slim fit. This design is intended to sit close to your body, optimizing thermal efficiency and making it easier to layer under other garments without excess bulk. It also contributes to enhanced mobility for active use.
Troubleshooting
Jacket feels less warm than expected.
Ensure the insulation is fully lofted by gently shaking the jacket after unpacking or washing. Check your layering system; a proper base and mid-layer combination beneath can significantly enhance warmth. Avoid compressing the jacket for extended periods.
Water is no longer beading on the fabric surface.
This indicates the DWR (Durable Water Repellent) treatment needs re-activation or re-application. First, try washing the jacket with a DWR-friendly technical cleaner. If that doesn't restore beading, apply a spray-on or wash-in DWR treatment specifically designed for technical outerwear, following the product's instructions.
Restricted movement during activity.
The Cirrus Flex has a slim fit designed for active movement and layering. Ensure you have the correct size. If wearing multiple layers underneath, consider if the combined bulk is causing restriction. The stretch fleece panels are designed to aid movement, so ensure these are not being pulled tight by overly bulky inner layers.
Pros and Cons
Pros
Retains warmth effectively even when wet due to PrimaLoft Silver RISE insulation.
Excellent breathability and freedom of movement from stretch fleece side panels.
Lightweight and highly packable, making it easy to carry on any adventure.
Versatile for use as an outer layer or a mid-layer in varying temperatures.
Windproof and water-resistant outer fabric offers good weather protection.
Cons
Slim fit may not suit all body types or layering preferences.
Not fully waterproof; offers water resistance but not protection in heavy downpours.
Synthetic insulation can be slightly less compressible than premium down alternatives.
Limited pocket options mentioned (Info needed: specific pocket count and type).
May require reapplication of DWR treatment over time to maintain water resistance.
Setup, Compatibility & Care
Setup:
Your Rab Cirrus Flex Hooded Jacket requires no special setup. Simply unpack it and it's ready for wear. For optimal loft and warmth after storage, gently shake the jacket to redistribute the insulation.
Compatibility:
Layering: The jacket's slim fit and reduced bulk from the fleece side panels make it an ideal mid-layer under a waterproof shell for colder, wetter conditions. It can also be worn as a standalone outer layer in dry, cool-to-cold weather.
Activities: Designed for climbing, general use, trekking, and mountaineering, its features support a wide range of mountain activities.
Care Instructions:
To maintain the performance and longevity of your jacket, follow these general care guidelines:
Washing: Machine wash cold on a gentle cycle with a technical wash designed for synthetic insulation. Close all zippers and fasteners before washing.
Drying: Tumble dry on low heat with dryer balls to help restore insulation loft. Ensure the jacket is completely dry before storing to prevent mildew.
DWR Re-application: Over time, the Fluorocarbon Free DWR (Durable Water Repellent) finish may wear off. You can restore water resistance by applying a DWR-specific wash-in or spray-on treatment, following the product's instructions.
Storage: Store the jacket uncompressed in a dry place to maintain the loft of the PrimaLoft insulation.