What is the Cerium SV?
The Cerium SV is a specialist highly insulated and warmer version of the Cerium LT that can be used as an extremely warm midlayer or as a standalone outer layer in cold, dry conditions. Using the highest quality down, it weighs much less than the average jacket of the same calibre, has intelligently placed insulation and can be stuffed into it's own included stuff sack for easy storage.
What is it made of?
Insulation: The Cerium is beautifully made, as you would expect from Arcteryx, but the really clever thing is the way that they have made the jacket so light. Traditional down jackets are made lighter by simply reducing the amount of down and using super lightweight, fragile materials. Arcteryx, however, have stuffed the Cerium with 850 fill power European Goose Down, meaning less down has to be used to achieve the same warmth. The Cerium also uses strategically placed Coreloft siliconised polyester synthetic insulation in areas that receive the most moisture and are affected by compression. The shoulders are Coreloft insulated as are the hem, sleeves and underarms. Coreloft retains warmth even when wet and resists compression better than down, so you get the best of both types of insulation; unrivaled warmth and comfort from the down in the main body and protection from Coreloft in strategic areas.
Outer fabric: The face fabric (Arato 10) used in the Cerium SV is made from 100% nylon and is DWR (durable water repellant) coated, therefore having the ability to resist moisture and wind while being used as an outer layer. Despite its tough and water repellent properties, it doesn't take up much room when packed down and stuffed in your rucksack.
What are the features?
Starting from the top, you get an insulated StormHood which will fit over a climbing harness when you're at a belay stop and is fully adjustable via in-build Cohaesive cordlock adjusters, two large hand pockets, an internal pocket, an included stuffsack and lastly hem drawcords to seal in warmth around your waist.
How does it fit?
The Cerium SV fits into Arc'teryx's 'regular' fit block, meaning you've got an plenty of room in the shoulders for movement, an average length which should suit most users, long sleeves which don't fall down your arms when climbing and a fairly snug fit to trap plenty of warmth in the body. You can fit layers underneath if you're in particularly cold conditions.
Where does it fit in the layering system?
The Cerium SV can either be used as a super warm midlayer with a shell over the top in damp conditions, or as an outer layer in cold, dry conditions. It can also be used as an over-layering piece; for example if you're stopping for lunch and need to stay warm, simply dump the Cerium SV over the top of all your other layers while stationary and remove once you get moving again.
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850 fill power European Goose Down
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100% nylon face fabric with DWR coating
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Adjustable, low profile, down insulated storm hood
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Two zippered hand pockets
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Full front zip with chin guard and wind flap
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Low profile, elasticated cuff at the wrist layers easily
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Adjustable hem drawcord
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Stuff sack included
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Trim fit