Light and packable, the Cirrus Flex is the ultimate year-round synthetic insulation. It’s 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, it’s 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.

PrimaLoft® Silver RISE insulation resists clumping when wet, keeping you warm in damp weather
YKK® VISLON® center front zip with insulated zip baffle and fleece-lined chin guard
2 YKK® concealed zipped hand pockets
The Cirrus Flex’s signature Thermic™ stretch fleece panels offer mobility and breathability
Articulated sleeves, with semi-elasticated cuffs
Larger baffles allow insulation to loft more and trap warmth more effectively
Single sided hem adjustment with anti-snag tether
Lightweight, 20D Pertex® Quantum fabric
Multiple secure pockets, one of which doubles up as an integrated storage pocket
Fit: Slim
Weight: 334g / 11.8 oz (Size 10)
Center back length: (Size S): 67 cm / 26.4 inch
Insulation: PrimaLoft® Silver RISE 100% recycled synthetic insulation (120g/4.2oz, size 10)
Main fabric:20D Recycled Pertex® Quantum outer (38gsm) with fluorocarbon free DWR
Secondary fabric: Thermic™ stretch fleece (215gsm) side panels
Fabric lining: 20D Recycled Pertex® Quantum lining (38gsm) with fluorocarbon free DWR