Summer weather is warm, until it isn’t. So compact and light, there is no reason to leave it behind, our lightest Atom is there for you when the temperature drops. Strategically placed at the chest and back, the Coreloft™ insulation is efficient, light, and compressible. The Tyono™ 20 outer balances airflow with wind resistance and has a DWR finish to repel moisture. Stretch fleece side panels ventilate and an uninsulated hood adds coverage and buttons out of the way when not in use.

Moisture-wicking
Breathable
Compressible and packable
Insulated
Wind resistant
Ultralight

Fleece stretch side panels allow for ventilation

Composite Mapping Technology strategically places each fabric for most effective protection and climate management

Coreloft™ Compact 40 synthetic insulation in the core provides warmth

Uninsulated, mesh lined sleeves give light protection and regulate temperature

Trim fit for base layer or light mid-layer use

DWR (Durable Water Repellent) finish repels moisture

Drop back hem
Adjustable hem drawcord

Stowable hood
Adjustable, low profile uninsulated StormHood™

Articulated elbows
Gusseted underarms for mobility and comfort

Two hand pockets with zippers

Contains materials that meet the bluesign® criteria

Full front zip with chin guard
No Slip Zip™ front zipper

All measurements are in inches

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