The Atom AR is an incredibly versatile All Round (AR) jacket suitable for a variety of conditions and temperatures. It's wind and water repellent while remaining highly breathable, and is more than capable of shrugging off the worst of the weather.
The Tyono face fabric is a 30 denier nylon fabric have been treated with a Durable Water Repellant (DWR) finish for greater weather protection. The tight weave of the Tyono face fabric allows for very little air permeation which plays a very important role. This minuscule amount of air will go un-noticed but will slowly replenish the warm air that's already trapped inside the insulation and will help to keep you at a comfortable temperature.
However, it has been developed by Arc'teryx to be more durable. Not only is it more durable, the synthetic fibres have been siliconised to further increase breathability by reducing the fibres ability to hold onto moisture. Arc'teryx have actually used 3 different weights of Coreloft in the construction of this jacket; the main body uses 120g/m², under the arms have 80g/m² and the hood is insulated with 60g/m². This zoned insulation increases comfort by aiding temperature regulation as it allows the jacket to trap more warm air where it is needed the most.
If you are of the climbing and scrambling orientation you'll be happy to know that the Arc'tyerx StormHood is helmet compatible without being oversized. Which is also good news for the average walker/mountain goer, as this means their head won't get lost inside a vast cavernous hood.
Finally, the low-profile Jersey knit cuffs are so soft and so smooth you'll barely notice that they are there, especially when you do need to “layer up”.
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Moisture-resistant outer face fabric
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Breathable
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Lightweight
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Compressible and packable
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Durable
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Wind resistant
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DWR finish (Durable Water Repellent) helps repel water from fabric surface
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Composite construction
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Articulated elbows
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Gusseted underarms
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Regular Fit
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Helmet compatible StormHood
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Insulated hood
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Full length No Slip Zip, chin guard and wind flap
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Stretch-knit cuffs fro seamless layering
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Adjustable hem drawcord
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Drop back hem
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Laminated hem
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Internal chest pocket
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Two hand pockets with zippers