What is the Cerium LT?
The Cerium LT Jacket is a specialist lightweight down jacket that can be used as an active user’s winter mid layer or as a standalone piece in cold dry conditions. It weighs next to nothing, has clever mapped insulation and can be stuffed into its own stuff sack for easy storage.
What is it made of?
Insulation: Traditional down jackets are made lighter by simply reducing the amount of down and using super lightweight, fragile materials. Arc’teryx, however, have stuffed the Cerium with 850 fill power European Goose Down, therefore using less insulation but achieving the same warmth. Weight reduction has been achieved through ingenious engineering techniques. For example, the baffles on the elbows are narrower on the inside because your arm is naturally bent, so that area needs less fabric, the hem draw cords are reduced and only pull in the back of the jacket and the whole jacket is anatomically cut to reduce surplus fabrics. Arc’teryx have strategically placed Coreloft insulation in areas that receive the most moisture and are affected by compression. Therefore, the shoulders are Coreloft insulated as are the hem, sleeves, and underarms. This retains warmth even when wet and resists compression better than natural down. You get the best of both types of insulation, unrivalled warmth, and comfort from the down in the main body and protection from Coreloft in strategic areas.
Outer fabric: The outer is a 10-denier mini-rip ripstop nylon which has been treated with a DWR (durable water repellent), so it is tough (for its weight), wind resistant, highly breathable and has a smooth feel and soft handle.
What are the features?
Feature wise, you get an insulated, adjustable and helmet compatible StormHood, two zipped hand pockets, an internal zipped security pocket, an included stuffsack, an adjustable hem and an elasticated cuff.
How does it fit?
The Cerium LT fits into Arc'teryx's 'Trim' fit block. It features an average length, a trim body to trap as much warmth as possible and roomy shoulders to allow you to climb effectively without feeling restricted. You can fit light layers underneath if needs be, but size accordingly.
Where does it fit in the layering system?
The Cerium LT can be used as a super warm midlayer in cold and damp conditions, or just as effectively as an outer layer in cold, dry conditions.
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Extremely lightweight
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Packable
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Stuffsack included
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High quality down insulation
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Helmet compatible hood
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Two hand pockets
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One internal pocket
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Trim fit
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Elasticated cuffs
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Adjustable hem