How to Choose Insulated Outerwear

Built for cold, dry conditions, the women's Arc'teryx Thorium Down Hoody jacket offers serious warmth and handles a wide range of environments thanks to mapped insulation and a roomy, layer-ready fit.
Imported.
View the Arc'teryx Thorium Product LineView all Arc'teryx Women's Down JacketsBest Use | Hiking |
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Fabric | Arato 20-denier 100% nylon (60% bio-derived material) with FC0 durable water repellent (DWR) |
Lining Fabric | Arato 30-denier 100% nylon |
Insulated | Yes |
Insulation Type | Down |
Insulation | 750-fill grey goose down (RDS certified); Coreloft 140 (140 g/m2) and 80 (80 g/m2): 80% recycled polyester (bluesign-approved material) |
Warmth | Warmer |
Hood | Yes |
Packable | Yes |
2-Way Zipper | Yes |
Back Length | Hip-length |
Back Length (in.) | Unavailable |
Gender | Women's |
Weight | 1 pound |
Sustainability | Down certified to the Responsible Down Standard (RDS) Contains recycled materials |
XXS | XS | S | M | L | XL | XXL | XS Short | S Short | M Short | L Short | XS Tall | S Tall | M Tall | L Tall | XL Tall | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 00 Short | 0 Short | 2 Short | 4 Short | 6 Short | 8 Short | 10 Short | 12 Short | 14 Short | 2 Tall | 4 Tall | 6 Tall | 8 Tall | 10 Tall | 12 Tall | 14 Tall | 16 Tall | |
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Numerical Size | 00 | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | 00 | 0-2 | 4-6 | 8-10 | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | |
Chest | 30 | 32 | 34 | 36 | 39 | 43 | 47 | ||||||||||||||||||||||||||||||||||||
Sleeve Length | 28.5 | 29.5 | 30.5 | 31.5 | 32 | 32.5 | 33.5 | ||||||||||||||||||||||||||||||||||||
Waist | 23.5 | 25.5 | 27.5 | 29.5 | 32.5 | 36.5 | 40.5 | 27 | 28.5 | 30.5 | 34 | 27 | 28.5 | 30.5 | 34 | 38 | 24 | 25 | 26.5 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 37 | 24 | 25 | 26.6 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 26.6 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 37 |
Hip | 33 | 35 | 37 | 39 | 42 | 46 | 50 | 36 | 38 | 40 | 43.5 | 36 | 38 | 40 | 43.5 | 47 | 33.5 | 34.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 46.5 | 33.5 | 34.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 46.5 |
Inseam | 30.5 | 31 | 31 | 31 | 31.5 | 32 | 32 | 28.5 | 29 | 29 | 29.5 | 33.5 | 34 | 34 | 34.5 | 35 | 30.5 | 30.5 | 30.5 | 31 | 31 | 31 | 31.5 | 31.5 | 31.5 | 32 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
Measurements are stated in inches unless otherwise indicated.
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The clothes are very light and provide great warmth
I have owned my thorium for four years and it is one of the most used jackets in my closet for all types of outdoor activities in fall, early spring, and winter season. This jacket is very warm, repels rain and snow, breathable, and fits perfectly as a layer under my Beta AR shell in cold fluctuating weather. From snow sports layering to hiking and casual wear use, the thorium is an excellent versatile jacket with a true to size fit. After four years of heavy use no issues with down feathers coming out. I look forward to Arc’teryx releasing a dark navy color in the thorium in the future.
I’ve been researching for a nice and very warm jacket and this jacket is not disappointing at all! Keep me warm during the cold weather and it's perfect! Also, I run cold very easily and this jacket does its job very well.
This is a very good fit for 5'10 180lb average size male. The Thorium medium size men version does not give much room to layer, and the large size men has arms too long. Women's XL arm length is just right and has room to wear a turtle neck or thermal, maybe even a hoody shirt, which would be needed. The fabric is much sturdier than cerium. The neck fit issue can be resolved by flipping the hoody a bit outward, then the collar can be laid flat against the shoulder. My hood is pretty big and can accomodate a hat or thinner helmet. I am satisfied with the fit, and will need to test this in some colder weather. I took a star off because the down panels are large horizontal tubes, I wish there were threads separating the down compartments into smaller square sections. I can foresee an issue when washing this, the down will get bunched up inside the long tubular sections, and there wont be an even distribution of down after the wash, it will take much more effort to redistribute and fluff the insulation. You may end up needing to use more tennis balls and longer time in the dryer.
The outer material of this pink jacket is so thin it is see through and you can see all the down feathers right through the fabric. It looks horrible. I was very disappointed.
Hi there. Thank you for sharing your feedback on the Thorium Hoody. We understand your concerns about the outer fabric being thin and showing the down. If you’re looking for a synthetic insulated alternative with a more opaque material, the Atom line offers similar warmth and a smooth, durable outer that might better meet your needs. Your comments on material appearance are valuable, and we’ll pass them along to our product team for consideration in future designs.