Arcteryx Atom LT Hoody - Women's

Arcteryx Atom LT Hoody - Women's
  • Color: Illusion
  • Color: Black
  • Color: Bushwhack
  • Color: Dimma
  • Color: Flux
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Lightweight, breathable, insulated hoody; Ideal as a standalone piece in fair weather, or as a layering piece in cold conditions. Atom Series: Synthetic insulated mid layers | LT: Lightweight.

This product has a No Slip Zip™. The main zipper is equipped with “speed bumps” near the collar to avoid self-opening.

This trim hybrid hoody is designed as an active-use insulation layer, providing vital core warmth with liberal mobility and breathability. Lightweight and compressible, the Atom LT Hoody features Coreloft™ insulation in the torso, arms and hood. The side panels and underarms feature feature smooth faced, air permeable fleece stretch for ventilation. A wind and moisture resistant outer shell extends stand-alone usability.

Fact: Every person at Head Office owns at least one Atom LT; most of the women have two.
The reason: Coreloft™ insulation inside a light taffeta shell. All the comfort of a sleeping bag, but it feels weightless.

The benefit of taffeta fabrics is their light, airy nature with an ability to turn aside wind. The Atom series have a taffeta outer lining that is treated with DWR (durable water resistant) finish to give them a long-lasting ability to shed moisture. DWR protects against light precipitation.

Mid layers that can function as outer layers have varied degrees of weather shedding capability; they also have varied degrees of moisture management. In addition to being made of breathable Coreloft™ insulation, the Atom LT has smooth faced, air permeable fleece stretch side panels to help regulate temperature during exertion.

Highly compressible, Atom pieces pack down into a tiny parcel of stored warmth. Store the jacket inside its own pocket, or tuck it into a sleeve or inside the hood if you are not restricted by space. A quick shake restores the original loft, time and again.

Technical Features

  • Moisture-resistant outer face fabric
  • Breathable
  • Insulated
  • Lightweight
  • Compressible and packable
  • Wind resistant


  • Composite construction
  • Breathable, stretch side panels for enhanced comfort and mobility

Design & Fit

  • Trim fit for base layer or light mid-layer use


  • Articulated elbows
  • Gusseted underarms for mobility and comfort

Hood Configuration

  • Adjustable, low profile, insulated StormHood™

Zippers & Fly Configuration

  • Full front zip with wind flap
  • No Slip Zip™ front zipper

Cuff & Sleeves Configuration

  • Stretch-knit cuffs

Hem Configuration

  • Adjustable hem drawcord
  • Drop back hem
  • Laminated hem

Pocket Configuration

  • Internal chest pocket
  • Two hand pockets

Fabric Treatment

  • DWR (Durable Water Repellent) finish repels moisture

Part Numbers

Option UPC Store SKU
Illusion / Small 686487403741 JAC594257999
Illusion / Medium 686487403734 JAC598854989
Illusion / Large 686487403727 JAC599990719
Illusion / X-Large 686487403758 JAC593284099
Black / Small 686487331075 JAC456968958
Black / Medium 686487331068 JAC452199748
Black / Large 686487331051 JAC457089358
Black / X-Large 686487331082 JAC45387278
Bushwhack / Small 686487403598 JAC602980589
Bushwhack / Medium 686487403581 JAC604296289
Bushwhack / Large 686487403574 JAC608776219
Dimma / Small 686487403642 JAC569125979
Dimma / Medium 686487403635 JAC569329769
Dimma / Large 686487403628 JAC566783269
Dimma / X-Large 686487403659 JAC564186319
Flux / Small 686487403697 JAC552721149
Flux / Medium 686487403680 JAC558205239
Flux / Large 686487403673 JAC552959129
Flux / X-Large 686487403703 JAC556166189