Arc'teryx Atom Hoody
The gold standard for versatile, all-mountain synthetic insulation.
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Why people are buying it
The Arc'teryx Atom Hoody is a highly versatile synthetic insulated jacket designed to perform across a wide range of mountain activities. It utilizes Coreloft™ Compact insulation, which retains warmth even when damp, paired with a durable, breathable Tyono™ 20 face fabric. With its articulated fit and helmet-compatible hood, it serves as an essential mid-layer for cold conditions or a reliable standalone piece for cool, dry weather.
- Coreloft™ Compact synthetic insulation retains warmth when wet
- Lightweight, durable Tyono™ 20 face fabric with DWR finish
- Articulated patterning for unrestricted mobility
- Helmet-compatible StormHood™ with adjustable drawcords
- Breathable side panels for thermal regulation during high-output activity
What it does well
- Exceptional warmth-to-weight ratio
- Highly breathable side panels
- Packable and resilient insulation
- Versatile for layering or standalone use
What to weigh
- Premium price point
- Not fully waterproof
- Trim fit may feel restrictive for some
Should you buy it?
The Atom Hoody is a benchmark in outdoor apparel, offering a perfect balance of warmth, breathability, and mobility. It is a worthwhile investment for outdoor enthusiasts who need a reliable, high-performance jacket that handles moisture significantly better than traditional down.
Specifications
| Insulation | Coreloft™ Compact 60g/m² |
| Shell Material | Tyono™ 20 denier |
| Weight | Approx. 375g |
| Fit | Trim fit, hip length |
| Hood | StormHood™ (helmet compatible) |
| Pockets | Two hand pockets, one internal chest pocket |
| Sustainability | Contains bluesign® approved materials |
| Activity | All-round mountain use |
From published manufacturer information. Check the store listing for the exact variant.
How it compares
| Product | Weight | Insulation Type | Breathability | Water Resistance | Best Use |
|---|---|---|---|---|---|
| Arc'teryx Atom Hoody | 375g | Coreloft Synthetic | High | DWR Finish | All-mountain |
| Patagonia Nano Puff | 360g | PrimaLoft Gold | Moderate | DWR Finish | Lightweight Layering |
| Arc'teryx Proton Hoody | 400g | Coreloft Compact | Very High | DWR Finish | High-output activity |
Worth a look instead
Questions buyers ask
Is the Atom Hoody waterproof?
No, it is water-resistant thanks to a DWR finish, but it is not intended for heavy rain.
Can I wear this under a shell?
Yes, its trim fit and low-profile insulation make it an ideal mid-layer under a hardshell.
How do I wash it?
It is machine washable on a gentle cycle with technical garment detergent; tumble dry low.
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