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Performance Mapping
Materials are positioned to maximise performance where it’s needed.
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Double-sided Collar
For extra protection and warmth.
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Full-Length Zip
Lightweight No.3 YKK front zip reduces weight and improves layering ability.
Low Profile Seams
Comfort Cuff & Hem
Outer 100% Nylon (recycled); Insulation 100% Polyester (recycled); Fleece 50% Polyester (recycled) 42% Nylon 66, 8% elastane.
![FEATHERLITE AIR 20D. 100% Recycled Ripstop.](http://ua.montane.com/cdn/shop/files/Sirocco_3_e011eb4a-3414-4ec3-9ab3-dc462fdbd45f.jpg?v=1706777817)
FEATHERLITE AIR 20D. 100% Recycled Ripstop.
This durable outer fabric has ripstop for protection in abrasive environments as well as mechanical stretch so that it can move dynamically with the body. Twinned with a PFC DWR coating, it provides high wind resistance and exceptional breathability.
![THERMO STRETCH LITE. 4-Way Stretch.](http://ua.montane.com/cdn/shop/files/mens-sirocco.jpg?v=1721221836)
THERMO STRETCH LITE. 4-Way Stretch.
Despite offering hyper-mobile, four-way stretch this smooth-faced brushed back fleece is extremely durable, offering high performance and excellent moisture management. This will allow you to work hard in the mountains without overheating.
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We are committed to reducing our environmental impact and to being transparent with consumers, to give you confidence about the origin of your Montane products.
We’re also committed to keeping you informed along the way. Learn more here about the organisations Montane is working with to protect our playground, and to help us to make considered, responsible choices.