• 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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Proton Heavyweight Hoody Women's
$400.00

Proton Heavyweight Hoody Women's

Rating Distribution

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

Overall Rating

4.6
14 out of 16 (88%) reviewers recommend this product

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Rating Summary

satisfaction
warmth
fit
pockets
purchase
large
layering
comfort
1 to 8 of 21 Reviews
1 – 8 of 21 Reviews
Age:35-44
Gender:Female
Your Height:152cm or less
4 out of 5 stars.

Great features, warm, comfy but runs really big!

13 days ago
Overall, I really liked how the jacket was warm and cozy. I purchased size XS. However, as other reviews have mentioned the fit of the jacket is poor - it runs really big! I typically wear an XS for arc'teryx insulated jackets, but this was about 2 sizes too big even with a fleece sweater layer underneath. It was about 1 size bigger in the arms, fits fine in the shoulders, but 2 sizes bigger in the core (I could grab two handfuls of excess material). I intended to use this as a technical jacket during colder months in the Alberta alpines, but because of the improper sizing and I wasn't able to return at the time, this jacket has been used for cooler days in the city or an extra layer for front country camping. It also turned out to be good layer for sleeping - it added a few extra degrees to my sleeping bag for winter car camping. I don't recommend purchasing this jacket until they figure out the sizing issue. It's a nice jacket, but expensive for what it is.
Q: Size Purchased:
A: XS

No, I do not recommend this product.

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

Bad fitting proton

a month ago
I had to return the Proton. The fit just doesn’t work for me. The shoulders and arms are fine, with enough room for another jacket or a thick sweater underneath. However, the lower part and the waist don’t fit well—the belly sticks out completely, and the bottom is too long, extending over the hips, which makes it impractical for active use. Where have the athletic jackets gone that are designed for people with muscular arms and a narrow waist? I hope Arc’teryx adjusts the fit of the Proton, just like they did with the new Atom—providing enough room in the shoulders without being too long or too wide. I’ll wait and hope that in the new season, the Proton Heavyweight gets an updated fit because the quality and materials of the jacket are truly excellent.
Q: Size Purchased:
A: S
Q: Pros:
A: Amazing materials
Q: Cons:
A: Bad fitting jacket
I use this product for:Commuting/Travel, Trekking, Casual Wear, Hiking

No, I do not recommend this product.

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Response from Arc'teryx:
a month ago
Arc'teryx Guest Services
Hi Robin. Thanks for sharing your thoughts on the Proton Heavyweight Hoody. We appreciate your feedback on the fit and understand how important it is for performance and comfort. While this version was designed with warmth and layering in mind, we’ll pass your insights along to our design team for future considerations.
0 Comments
Age:25-34
Gender:Female
Your Height:176cm - 182cm
5 out of 5 stars.

Living in it!

a month ago
This is a really cozy piece. I love the brushed fleece lining in the hand pockets, the huge amount of pockets (like, 6! Perfect for hats and snacks and dog treats), as well as the relaxed feel of the piece. I’m a medium in the Proton and Atom lines and this size fits me well with a fleece underneath, or with my large shell on top. The heavyweight is breathable and great for chilly dog walks and as a warm synthetic layer under my shell on rainy cold days. For me personally it’s too warm to wear for any high output activity, but I run very warm when moving and freeze when static. I was trying to decide between the atom and proton, but eventually went with the proton because of its breathability and pockets. Really happy with my purchase!
Q: Size Purchased:
A: Medium
Q: Pros:
A: Cozy, comfy, warm, pockets!!
I use this product for:Casual Wear, Ski/Snowboard

Yes, I recommend this product.

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0 Comments
Burlingame, CA
Age:35-44
Gender:Female
5 out of 5 stars.

Solid Proton option and TTS

3 months ago
Have had Protons for years, prob going back to 2016/17? Love the Heavyweight addition; this is one jacket I’d like to use as a standalone in more situations than I could with my mighty OG Proton. I do not quite understand the comments about the sizing being *huge*. I ordered an XS in preparation for this, with my measurements falling in line with this size in almost all brands, save for my chest, which is bigger than most XS sizes want to accommodate for. So it’s always a toss up between a true XS or a S to accommodate the chest and any layers. With this jacket, XS does it for me, and FWIW, my older Protons were XS too. I do feel this jacket bunches a bit more than the OG Proton, but it’s more heavily insulated — I should expect that — and it’s not cumbersome. Love the stratus light blue color and wish I could get more things in it this year, but so many are sold out. Hope to keep this jacket for a long time.
I use this product for:Commuting/Travel, Trekking, Casual Wear, Hiking

Yes, I recommend this product.

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Age:35-44
Gender:Female
Your Height:168cm - 175cm
4 out of 5 stars.

Warmth and comfort without bulk

4 months ago
Comfortable fit except for the huge hood. Just the right level of warmth for winter walks and being out and about. Love the Stratus colour.
Q: Size Purchased:
A: Small
Q: Pros:
A: Comfort, warmth, colour
Q: Cons:
A: Enormous hood
I use this product for:Mountaineering, Casual Wear, Hiking, Ski/Snowboard

Yes, I recommend this product.

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0 Comments
5 out of 5 stars.

Love this!

5 months ago
Warm, true to side, the best jacket i have owned. Love the extra pockets in front
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0 Comments
Dolomites, Italy
Age:35-44
Gender:Female
Your Height:161cm - 167cm
5 out of 5 stars.

Awesome jacket

5 months ago
Daily use on the mountains. Ideal in autumn as jacket and in winter as 2nd layer under a shell when skiing or skitouring. To warm on summer days.
Q: Pros:
A: I like the pockets on the chest

Yes, I recommend this product.

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Seattle
Age:35-44
Gender:Female
Your Height:168cm - 175cm
4 out of 5 stars.

Warm, too big

5 months ago
Jacket is warm and fits well, however please make in XXS size. I got the XS and it is WAY too big. Am 5'6" and 110 pounds for reference.
Q: Size Purchased:
A: XS
I use this product for:Trekking, Climbing, Mountaineering, Hiking
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0 Comments
1 – 8 of 21 Reviews
Proton Heavyweight Hoody
rating 4.5714 out of 521 Reviews

Warmth and durability combine in a hoody for high output in cold conditions.

$400.00
Colour:Stratus
Size:
Sizing chart & Fit guide
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Warm, breathable insulated hoody

Proton Heavyweight Hoody Women's

Created to offer the breathability, durability, and mobility guides and mountain professionals demand, our warmest Proton delivers air-permeable thermal performance for high-output missions in cold conditions. 100gsm Coreloft™ insulation and the Fortius™ Air 50 outer allow airflow that helps speed vapour transport and balance thermal comfort. 60gsm Coreloft™ in the sleeves and helmet-compatible StormHood™ reduces bulk, the regular fit layers easily, and articulated patterning removes restriction.

Proton

Air permeable mid layer insulation with abrasion and weather resistant outer surface.

Multi-use

Versatile high performance designs for diverse activities and conditions.

Articulated construction

Articulation removes restriction, so we utilize complex patterning and seam placement to create three-dimensional designs that free you to move.

Synthetic insulation

Synthetic insulation provides warmth even when wet. Abrasion-resistant and quick-drying, it delivers comfort and performance in demanding conditions.