Atom SL Jacket Women's

$156 ~~$260~~ In stock

This new Atom SL Jacket from Arc'teryx is the lightest weight synthetic insulation layer in the Atom series. Features include Coreloft™ stretch insulation in the chest and back, stretch fleece side panels, Fortius™ Air 20 denier outer fabric, uninsulated mesh-lined sleeves, and two zippered hand pockets. Great as a lightweight insulation layer for summer or as and active insulating layer for cooler temperatures. An extremely versatile layer that can be used all year round.

Details

Fortius™ Air 20 Denier Recycled Outer Shell Fabric, 88% Nylon / 12% Elastane
FC0 Water Repellent Finish
100% Polyester Coreloft™ Stretch 40gsm Synthetic Insulation in Chest and Back
Octa™ Fleece Side Panels. 100% Polyester. 40D Delta Face, 122gsm
Recycled 20d Nylon Plain Weave Weft Stretch Lining Fabric, 88% Nylon / 12% Elastane
Uninsulated Mesh-Lined Sleeves
Full Length No Slip Zip™ Front Zipper with Chin Guard
Two Zippered Hand Pockets
Stows in Pocket
Dual Adjustable Hem Drawcords
Articulated Elbows
Gusseted Underarms
Fitted
Moisture Resistant
Wind Resistant
Lightweight
Breathable
Compressible and Packable
Ultralight
Abrasion Resistant
Made in Bangladesh
7.2 oz (205 g)

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Charlotte ★★★★★ Oct 22, 2026

The stretch fleece side panels make this jacket incredibly easy to move in during cool morning hikes. I love that it packs down so small for my pack yet still keeps my core warm when the wind picks up.

Julian Q. ★★★★★ Oct 21, 2026

The Coreloft stretch insulation in the chest and back lets me move freely without feeling restricted, yet it still keeps me warm on chilly morning runs. It packs down surprisingly small for such an effective layer, which is perfect for my travel kit.

Elizabeth T. ★★★★★ Oct 20, 2026

I was pleasantly surprised by how packable this jacket is – it compresses down small enough to fit in my daypack without taking up much room. The stretch fleece side panels make it really comfortable for active use, even during a chilly morning hike.