• 4 4 5.5 4ZM3.5 4C3.22386 4 3 3.77614 3 3.5C3 3.22386 3.22386 3 3.5 3C3.77614 3 4 3.22386 4 3.5C4 3.77614 3.77614 4 3.5 4ZM1.5 4C1.22386 4 1 3.77614 1 3.5C1 3.22386 1.22386 3 1.5 3C1.77614 3 2 3.22386 2 3.5C2 3.77614 1.77614 4 1.5 4ZM2.5 5C2.22386 5 2 4.77614 2 4.5C2 4.22386 2.22386 4 2.5 4C2.77614 4 3 4.22386 3 4.5C3 4.77614 2.77614 5 2.5 5ZM4.5 5C4.22386 5 4 4.77614 4 4.5C4 4.22386 4.22386 4 4.5 4C4.77614 4 5 4.22386 5 4.5C5 4.77614 4.77614 5 4.5 5ZM6.5 5C6.22386 5 6 4.77614 6 4.5C6 4.22386 6.22386 4 6.5 4C6.77614 4 7 4.22386 7 4.5C7 4.77614 6.77614 5 6.5 5ZM7.5 6C7.22386 6 7 5.77614 7 5.5C7 5.22386 7.22386 5 7.5 5C7.77614 5 8 5.22386 8 5.5C8 5.77614 7.77614 6 7.5 6ZM5.5 6C5.22386 6 5 5.77614 5 5.5C5 5.22386 5.22386 5 5.5 5C5.77614 5 6 5.22386 6 5.5C6 5.77614 5.77614 6 5.5 6ZM3.5 6C3.22386 6 3 5.77614 3 5.5C3 5.22386 3.22386 5 3.5 5C3.77614 5 4 5.22386 4 5.5C4 5.77614 3.77614 6 3.5 6ZM1.5 6C1.22386 6 1 5.77614 1 5.5C1 5.22386 1.22386 5 1.5 5C1.77614 5 2 5.22386 2 5.5C2 5.77614 1.77614 6 1.5 6Z"

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  • 4 4 5.5 4ZM3.5 4C3.22386 4 3 3.77614 3 3.5C3 3.22386 3.22386 3 3.5 3C3.77614 3 4 3.22386 4 3.5C4 3.77614 3.77614 4 3.5 4ZM1.5 4C1.22386 4 1 3.77614 1 3.5C1 3.22386 1.22386 3 1.5 3C1.77614 3 2 3.22386 2 3.5C2 3.77614 1.77614 4 1.5 4ZM2.5 5C2.22386 5 2 4.77614 2 4.5C2 4.22386 2.22386 4 2.5 4C2.77614 4 3 4.22386 3 4.5C3 4.77614 2.77614 5 2.5 5ZM4.5 5C4.22386 5 4 4.77614 4 4.5C4 4.22386 4.22386 4 4.5 4C4.77614 4 5 4.22386 5 4.5C5 4.77614 4.77614 5 4.5 5ZM6.5 5C6.22386 5 6 4.77614 6 4.5C6 4.22386 6.22386 4 6.5 4C6.77614 4 7 4.22386 7 4.5C7 4.77614 6.77614 5 6.5 5ZM7.5 6C7.22386 6 7 5.77614 7 5.5C7 5.22386 7.22386 5 7.5 5C7.77614 5 8 5.22386 8 5.5C8 5.77614 7.77614 6 7.5 6ZM5.5 6C5.22386 6 5 5.77614 5 5.5C5 5.22386 5.22386 5 5.5 5C5.77614 5 6 5.22386 6 5.5C6 5.77614 5.77614 6 5.5 6ZM3.5 6C3.22386 6 3 5.77614 3 5.5C3 5.22386 3.22386 5 3.5 5C3.77614 5 4 5.22386 4 5.5C4 5.77614 3.77614 6 3.5 6ZM1.5 6C1.22386 6 1 5.77614 1 5.5C1 5.22386 1.22386 5 1.5 5C1.77614 5 2 5.22386 2 5.5C2 5.77614 1.77614 6 1.5 6Z"

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  • 4 4 5.5 4ZM3.5 4C3.22386 4 3 3.77614 3 3.5C3 3.22386 3.22386 3 3.5 3C3.77614 3 4 3.22386 4 3.5C4 3.77614 3.77614 4 3.5 4ZM1.5 4C1.22386 4 1 3.77614 1 3.5C1 3.22386 1.22386 3 1.5 3C1.77614 3 2 3.22386 2 3.5C2 3.77614 1.77614 4 1.5 4ZM2.5 5C2.22386 5 2 4.77614 2 4.5C2 4.22386 2.22386 4 2.5 4C2.77614 4 3 4.22386 3 4.5C3 4.77614 2.77614 5 2.5 5ZM4.5 5C4.22386 5 4 4.77614 4 4.5C4 4.22386 4.22386 4 4.5 4C4.77614 4 5 4.22386 5 4.5C5 4.77614 4.77614 5 4.5 5ZM6.5 5C6.22386 5 6 4.77614 6 4.5C6 4.22386 6.22386 4 6.5 4C6.77614 4 7 4.22386 7 4.5C7 4.77614 6.77614 5 6.5 5ZM7.5 6C7.22386 6 7 5.77614 7 5.5C7 5.22386 7.22386 5 7.5 5C7.77614 5 8 5.22386 8 5.5C8 5.77614 7.77614 6 7.5 6ZM5.5 6C5.22386 6 5 5.77614 5 5.5C5 5.22386 5.22386 5 5.5 5C5.77614 5 6 5.22386 6 5.5C6 5.77614 5.77614 6 5.5 6ZM3.5 6C3.22386 6 3 5.77614 3 5.5C3 5.22386 3.22386 5 3.5 5C3.77614 5 4 5.22386 4 5.5C4 5.77614 3.77614 6 3.5 6ZM1.5 6C1.22386 6 1 5.77614 1 5.5C1 5.22386 1.22386 5 1.5 5C1.77614 5 2 5.22386 2 5.5C2 5.77614 1.77614 6 1.5 6Z"

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New arrivals

The latest summer gear for mountain athletes.

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The latest summer gear for mountain athletes.

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Move with confidence.

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Climbers Julia Niles and Em Pellerin go big in Cochamó.

New arrivals

The latest summer gear for mountain athletes.

New arrivals

The latest summer gear for mountain athletes.

FOOTWEAR

Move with confidence.

Worn when it counts

Climbers Julia Niles and Em Pellerin go big in Cochamó.

Atom SL Hoody Women's
$280.00

Atom SL Hoody Women's

Best sellerFair Trade Certified

Rating Distribution

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14 reviews with 5 stars.
4 reviews with 4 stars.
0 reviews with 3 stars.
3 reviews with 2 stars.
0 reviews with 1 star.

Overall Rating

4.4
13 out of 14 (93%) reviewers recommend this product

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Rating Summary

warmth
fabric weight
layering
for hot weather
fit
small
satisfaction
hot
1 to 8 of 21 Reviews
1 – 8 of 21 Reviews
Bellingham, WA
Age:25-34
Gender:Female
Your Height:153cm - 160cm
4 out of 5 stars.

Solid lightweight mid layer

2 days ago
A good lightweight mid layer overall. The fit around the torso is a bit tight compared to the Proton Hoody.
Q: Size Purchased:
A: XS
Q: Pros:
A: hood, weight
Q: Cons:
A: tightness in the chest/tummy
I use this product for:Ski/Snowboard

No, I do not recommend this product.

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Colorado
Age:25-34
Gender:Female
Your Height:168cm - 175cm
5 out of 5 stars.

Perfect mid layer

9 days ago
This jacket. is the perfect mid layer. The fabric is warm but also breathable and light weight. Plus I love a hood
Q: Size Purchased:
A: S
Q: Pros:
A: Light weight
I use this product for:Trail/Running, Climbing, Mountaineering, Hiking, Ski/Snowboard
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0 Comments
Age:Over 64
Gender:Female
Your Height:168cm - 175cm
2 out of 5 stars.

Nice hoodie but was light

9 days ago
Product is lighter than expected therefore was not as warm as expected. Size did not run true.
Q: Size Purchased:
A: 3x
Q: Pros:
A: Nice color choices
Q: Cons:
A: Runs small to size
I use this product for:Trail/Running
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Response from Arc'teryx:
9 days ago
Arc'teryx Guest Services
Hi Joey, thank you for taking the time to share your feedback. We're sorry to hear that this piece didn't meet your expectations in terms of warmth and fit. We understand how disappointing it can be when a product doesn't feel quite right, and we appreciate you giving it a try. The "SL" in the product name stands for Superlight, and the item is specifically designed to offer a lightweight feel, ideal for standalone wear in warmer conditions or as a layering piece in cooler weather. In terms of fit, this style features a fitted silhouette, which means it’s intentionally cut closer to the body than styles with a regular fit. That might explain why the sizing felt different from what you're used to. If you ever have questions about fit, insulation levels, or choosing the best piece for your needs, our team is always here to help. Don’t hesitate to reach out—we’d love to make sure you find the right gear for your adventures. https://arcteryx.com/ca/en/help/contact
0 Comments
Age:45-54
Gender:Female
5 out of 5 stars.

Feather Light

13 days ago
Ultralight weight and warm, it excels on crisp summer mornings and nights. Great layering piece. Folds down small, making it easy to stash.
Q: Size Purchased:
A: Small
Q: Pros:
A: Core warmth, minimal weight
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0 Comments
Canmore, AB
Age:25-34
Gender:Male
Your Height:168cm - 175cm
5 out of 5 stars.

Awesome mid/outer layer for spring summer

23 days ago
This is an awesome layer that I almost wear everyday so far in the spring/summer season! Has just enough insulation to keep me warm where I want it but then just having the wind resistant face fabric on the arm feels like the perfect balance to still be able to wear this during some activity without immediately overheating. With how light it is I still bring it around with me trail running if I know its going to be a bit chilly up high or the perfect midlayer to a shell for summer activities!
Q: Size Purchased:
A: Small
Q: Pros:
A: Light, wind resistant, warm
Q: Cons:
A: none yet
I use this product for:Trail/Running, Climbing, Hiking

Yes, I recommend this product.

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0 Comments
Age:25-34
Gender:Female
Your Height:161cm - 167cm
5 out of 5 stars.

Use it all year round!

24 days ago
This is one of my go to pieces all year round! It's light and thin enough to allow for some breathability when pushing your body a little harder but also packs some warmth as a mid layer for those days up in the alpine. I enjoy the versatility of this piece as you can find use for it doing practically anything outdoors but also as a good layer to wear for your post adventure hangouts with friends in town.
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Calgary AB
Age:25-34
Gender:Female
Your Height:161cm - 167cm
5 out of 5 stars.

Great everyday piece!

24 days ago
I got the Atom SL Hoody in April this year, and it has been a staple ever since! I wear it as a casual piece every day, and also love wearing it for runs on colder spring mornings. Would highly recommend this jacket to anyone looking for a mid-weight, daily, versatile piece :)
Q: Size Purchased:
A: Small
Q: Pros:
A: Comfortable, Breathable, Versatile
I use this product for:Commuting/Travel, Trail/Running, Mountain Biking, Casual Wear, Hiking

Yes, I recommend this product.

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0 Comments
Edmonton, AB
Age:25-34
Gender:Male
Your Height:183cm - 190cm
4 out of 5 stars.

A vest with sleeves!

25 days ago
This is a really great piece of kit if you find that the Atom hoody generally runs too warm during active output. The hood and sleeves are not insulated, and when combined with the side panels it really is a super breathable layer that still keeps you warm. I've been grabbing the Atom SL for winter/early spring runs, and tossing it into my bag as a lightweight layer for hikes with cold starts. I've found that material for the sleeves does a great job at keeping the wind from pulling away any warmth from your arms. I'm 6', 190lbs and a large fits the same as the regular Atom in the same size. I have been able to wear the SL over a Delta Hoody when a little more warmth is needed and it easily fits under a Beta shell as well.
Q: Size Purchased:
A: Large
Q: Pros:
A: Lightweight, breathable, packable
I use this product for:Commuting/Travel, Trekking, Trail/Running, Mountain Biking, Casual Wear, Hiking, Ski/Snowboard

Yes, I recommend this product.

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0 Comments
1 – 8 of 21 Reviews
Atom SL Hoody
rating 4.381 out of 521 Reviews

Lightest, most packable Atom Hoody for big efforts in cold, wet conditions.

The Atom SL Hoody was previously the Atom Lightweight Hoody.

$280.00
Colour:Black
Size:
Sizing chart & Fit guide
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Our lightest, versatile synthetically insulated hoody

Atom SL Hoody Women's

Lighter than the original, the Atom SL Hoody is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth and mobility. Breathable and weather-resistant, it has stretch insulation in the body but not the sleeves or hood — maximizing packability while still delivering focused warmth to your core.

What's been updated: Updated with recycled Fortius™ Air 20 fabric, recycled stretch synthetic insulation, and FC0 DWR finish for improved mobility and a lower footprint. New Octa® Fleece side panels give enhanced breathability and less micro shedding. The StormHood™ is now lined and no longer stowable. The Bird logo is embroidered for long lasting visual.

Need a heavier option? Try the Atom Hoody.

Atom

Versatile synthetic insulated mid layers with a high degree of weather resistance.

Superlight

Superlight materials and design, emphasizing lightweight and packability over durability.

Fair Trade Certified™

Produced in a Fair Trade Certified facility. Building worker well-being into our product DNA.

Multi-use

Versatile high performance designs for diverse activities and conditions.

Stretch synthetic insulation

100% recycled stretch synthetic insulation throughout the core is warm yet highly breathable.

Uninsulated sleeves 

Windshell sleeves reduce weight and bulk when you’re stuffing it in your pack. 

Side panels

Stretchy fleece side panels up the breathability and give room to move. 

DWR finish 

A FC0 DWR Durable Water Repellent finish protects against light weather.