Arc'teryx Atom Jacket 2027 – Women's Insulator

The Arc'teryx Atom Jacket is a go-to insulating mid-layer for women who move fast in the mountains. Designed for cold alpine starts, unpredictable weather, and everything in between, it functions equally well as a standalone piece or tucked under a hardshell when conditions turn.

Built around recycled Coreloft insulation that resists compressing over time, the Atom delivers reliable warmth without bulk. Stretchy fleece side panels and a fitted, articulated cut keep movement unrestricted, while DWR-treated, moisture-resistant outer fabric (PFAS-free) handles light precipitation. A tricot-lined collar, stretch-knit cuffs, dual hem cinches, and a No Slip Zip front zipper with glove-friendly pulls round out a feature set built for real conditions. Two zippered hand pockets and an internal chest pocket cover your storage needs.

This jacket suits alpine skiers, ski tourers, and backcountry users who need a packable, breathable insulator that performs wet or dry. If you run warm on the way up and cold on the way down, the Atom's strategic heat management and vented hem make it a smart choice. It's especially well suited to riders who layer and need a mid-layer that won't restrict their movement or bulk under a shell.

• Can it be worn as an outer layer? Yes — the DWR-treated, wind-resistant face fabric handles light wind and moisture, making it viable as a standalone piece in dry, cold conditions.
• How does the insulation hold up over time? Coreloft insulation is specifically engineered to resist packing out, so it maintains its loft and warmth even after extended use and repeated washing.