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The Arc'teryx Atom Jacket returns with its iconic blend of warmth, breathability, and packability that's made it the gold standard for synthetic insulation. Built with ultralight yet durable Tyono 20™face fabric and Coreloft™ insulation that perform in wet conditions and withstand daily abuse, this jacket has earned its reputation as the go-to choice that skiers, climbers, and mountaineers trust on and off the mountain.
Tyono 20™ – 100% Nylon
FC0 PFAS-Free DWR
Coreloft™ 60 Synthetic Insulation – Warm, resilient 100% recycled Coreloft™ 60 synthetic insulation provides thermal performance and retains loft.
20D Recycled Nylon
Fitted with Articulated Patterning
One Internal Zippered Pocket
Zippered Hand Pockets
No Slip Zip™ Main Zipper
Custom TPU Zipper Pulls
Dual Hem Adjusters
| Warmth | Description | Ideal Conditions |
| Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
| Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
| Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
| Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |
| Size | XXS | XS | S | M | L | XL | XXL |
| Weight (g) | 335 |