Arc'teryx
Arc'teryx Atom Hoody
78B-TIERhigh Confidence
The benchmark synthetic insulated midlayer with 15+ years of refinement. Uses Coreloft Compact 60g insulation in a 20D Tyono nylon shell with stretchy fleece side panels for breathability. Weighs 13.1 oz. Adjustable StormHood and DWR finish. Covered by Arc'teryx limited warranty with ReBIRD repair program. A versatile piece for layering, mild-weather outerwear, and daily use, though the thin shell is snag-prone under backpack straps.
1,045verified reviews analyzed
91%positive
78
B-TIER/ 100Good
Material & Build20/25
Coreloft Compact 60g synthetic insulation retains warmth when damp. 20D Tyono nylon shell with FC0 DWR treatment is lightweight but functional. Stretch fleece side panels (94% polyester, 6% elastane) provide mobility and breathability. 20D Dope Permeair liner. Articulated elbows and gusseted underarms. Deducted for thin 20D shell being snag-prone under backpack straps and documented pilling with sustained abrasion contact.
Warranty & Support22/35
Arc'teryx limited warranty covers manufacturing defects for practical product lifespan with repair, replacement, or voucher at their discretion. ReBIRD program offers in-store and mail-in repairs for zippers, patches, buckles, and de-pilling. 4-6 week turnaround for mail-in service. Does NOT cover wear-and-tear, accidents, or normal use — narrower coverage than Patagonia Ironclad Guarantee.
User Trust36/40
Over 1,000 reviews on REI (Atom LT legacy) at 4.7/5 stars. Switchback Travel rates it 4.8/5 and calls it the premier all-around synthetic jacket. OutdoorGearLab top-rated insulated jacket. 15+ year product lineage with continuous refinement. Near-universal staff adoption at Arc'teryx stores. Long-term reviewers confirm 2+ years of constant use. Strong r/BuyItForLife and outdoor community presence.
high ConfidenceUpdated Feb 2026
High
Uses Coreloft Compact 60g synthetic insulation that retains warmth even when damp. Shell is 20-denier Tyono nylon with FC0 (PFC-free) DWR treatment. Side panels are stretch fleece (94% polyester, 6% elastane) for breathability. Liner is 20D Dope Permeair nylon. Total weight 13.1 oz for men's medium.
Source: Arc'teryx product specifications; Switchback Travel review
High
Features articulated elbows, gusseted underarms, and an adjustable StormHood with structured brim. The stretch fleece side panels provide exceptional breathability for active use, allowing the jacket to regulate temperature during high-output activities.
Source: Switchback Travel review; OutdoorGearLab review
Known Concerns4 issues reported
The 20-denier Tyono shell fabric is thin and snag-prone. Multiple users report pilling and abrasion marks where backpack straps contact the jacket, especially on extended trips. Not suitable for rough terrain with sharp branches or rocks.
Not designed as a standalone cold-weather jacket. Experts recommend it as a midlayer or for mild conditions (above 40F), not as primary insulation for stationary use in cold weather.
At $300 MSRP, it is more expensive than comparable synthetic insulated jackets from Patagonia ($249 Nano Puff) and others. The premium reflects Arc'teryx fit and engineering but limits value proposition.
Arc'teryx warranty does NOT cover wear-and-tear, accidents, or normal use — only manufacturing defects. Narrower coverage than competitors like Patagonia with broader Ironclad Guarantee.
$300.00
Where to Buy4 retailers
| Arc'teryx | Best price | $300.00 | Visit |
| REI | Best price | $300.00 | Visit |
| Backcountry | Best price | $300.00 | Visit |
| Zappos | Best price | $300.00 | Visit |
Prices updated Feb 2026. Links may earn a commission.
Brand Profile
Arc'teryx
Founded 1989 · North Vancouver, British Columbia, Canada
Founded in 1989 in North Vancouver. Known for technical precision in outdoor gear with innovations like Down Composite Mapping. ReBIRD program offers repair, resale, and upcycling.
Warranty
Limited warranty for practical product lifespan covering manufacturing defects. Repair, replacement, or voucher at Arc'teryx discretion. Wear-and-tear, accidents, and normal use not covered. ReBIRD in-store repairs for zippers, patches, buckles. 4-6 week turnaround for mail-in service.
Brand Score
22/30
Repair Program
Yes
Parts
medium
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