Rab Cirrus Flex Jacket
This lightweight synthetic duvet is a versatile insulating layer that's well suited to the UK's damp climate, says Charlie Low
The jacket's nylon face fabric has a DWR finish to repel precipitation, making it the ideal outerlayer or midlayer. The Nano-Air products are incredibly breathable, allowing airflow up to 40 CFM (cubic feet per minute) while still maintaining stretch and warmth, due to the exclusive combination of FullRange insulation and nylon fabric.
“As soon as we started field testing the Nano-Air Hoody, I knew we had something special on our hands, and lab testing confirmed it,” notes Jenna Johnson, Patagonia’s business unit director for alpine. “We’ve created an entirely new category of synthetic insulation with the Nano-Air products. The feedback we’ve received from our ambassadors has been incredible – you put it on and leave it on. It’s already hard to imagine climbing or skiing without it.”
“This piece has changed the way I think about dressing for the mountains,” notes Mikey Schaffer, Patagonia climbing ambassador. “With previous insulated jackets, I’d constantly be putting the jacket on at a belay and then taking it off before I started climbing. None of that is necessary with the Nano-Air Jacket. Having such a breathable jacket nearly eliminates the chills you get after sweating hard. The Nano-Air is definitely one of the most versatile jackets I've ever worn.”
FullRange Insulation is a multi-denier synthetic fill insulation made from several different types of polyester fibers, developed by Toray Mills in Japan. It's built in much the same way as traditional fill insulation, but has a proprietary element that gives it added stability against fiber migration, and allows for great stretch and recovery. Nano-Air garments use a 60-gram insulation weight for versatility in a wider range of temperatures. Utilizing a blend of hydrophobic fibers that repel moisture, FullRange insulation will maintain its warmth and loft when wet, and dries fast.
The Nano-Air Jacket and Hoody are available for both men and women, and can be purchased here.
To learn more and see the product in action, click here.