Arc'teryx Atom LT Jacket

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  • Overview
  • Light, versatile synthetic insulated jacket works as a midlayer and standalone. Atom Series: Synthetic insulated midlayers. | LT: Lightweight.

Product details

Light, packable and proven, the Atom LT – an Arc’teryx icon – is a performance warming layer for backcountry adventures, alpine ascents and downtown commutes. Refined for its next generation, we elevated its performance and extended its versatility. The Coreloft™ Compact 60 insulation retains heat when wet and withstands repeated packing and unpacking. The soft, durable Tyono™ 20 face fabric resists wind and weather, and stretch fleece side panels improve ventilation and freedom of movement.


Trim fit, Hip Length, Centre back length: 74 cm / 29.1 in

Trim fit for base layer or light mid-layer use 


ATOM: Versatile synthetic insulated mid layers with a high degree of weather resistance.

LIGHTWEIGHT: High performance, minimalist design that is durable for its weight.

ESSENTIALS: Versatile high performance designs for diverse activities and conditions.

SYNTHETIC INSULATION: Man-made insulation with quick dry times, durability and retains warmth when damp.

Mid-height collar is insulated and fleece-lined, layers well

Stretch-knit cuffs

Cuff construction increases durability, eases layering and removal

DWR (Durable Water Repellent) finish repels moisture

Dual lower hem adjusters

Slight drop hem

Laminated hem

Articulated elbows

Gusseted underarms for mobility and comfort 

No Slip Zip™ front zipper

Custom TPU zipper pulls


Two hand pockets with hidden zippers

Internal chest pocket with zip


Performance stretch fleece side panels give ventilation

Resilient Coreloft™ Compact 60 insulation retains loft

Light, soft Tyono™ 20 is air permeable




Lining: Dope Permeair™ 20D - 100% nylon - Dope Dyed, bluesign Approved Material (select colours)

Insulation: Coreloft™ 60 (60 g/m²) - 100% Recycled Polyester - bluesign Approved Material

Self: Tyono™ 20 denier shell with FC0 DWR treatment - 100% nylon

Stretch fleece - 94% polyester, 6% elastane


Insulation, All Around


Trim Fit


Machine wash in cold water on a gentle cycle

Do not bleach

Tumble dry on low heat on a delicate setting

Do not iron

Do not wring

Do not dry clean




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