How to Choose Insulated Outerwear

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Weighing just grams and packing smaller than a grapefruit, the women's Arc'teryx Cerium down vest makes a great minimalist alpine mid layer—or wear it over a long-sleeve in cool, dry conditions.
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View the Arc'teryx Cerium Product LineView all Arc'teryx Women's Down Vests| Best Use | Hiking |
|---|---|
| Fabric | Arato 20: nylon; FC0 durable water repellent (DWR); Arato 15: recycled dope-dyed nylon |
| Insulated | Yes |
| Insulation Type | Down / Synthetic Blend |
| Insulation | 850-fill-power European white goose down/100 g Coreloft 100/80 g Coreloft 80 |
| Hood | No |
| Packable | Yes |
| Back Length | Hip-length |
| Back Length (in.) | Unavailable |
| Gender | Women's |
| Weight | 6 ounces |
| Sustainability | Contains materials that meet the bluesign® criteria Contains recycled materials Down certified to the Responsible Down Standard (RDS) Fair Trade Certified |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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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This is my 2nd Cerium vest. I bought one for layering on a 10 day mostly cold hike with one night at 19k feet. It was perfect, light weight, warm, deep pockets. I do not travel in the winter without it. I will wear my down coat and have this vest in my backpack and after I get through TSA, I switch and pack the coat away. I've worn my other vest 100s of times and it still looks like new but I wanted another color. I wear an XS in regular clothes but got the S here. My other is an M to make room for a heavy layer.
This vest warms you up immediately, inside the store. However, the right size in the chest, is too small for the hips. Please look at a reshaping to accommodate women's hips. Also, if you had a 2 way zipper on the Cerium vest, it could be left undone at the bottom to accommodate the width of women's hips. Some women are pear shaped, small up top, wide at bottom. Lastly, if you could punch up the black colour to a bold, deep dark black it would add punch when paired with Dynasty, Arctic White and Ray jackets. Please try to update this vest by Fall 2026. I need a vest to go with your Gamma and Beta jackets, otherwise Burrrrr... Thanks so much Arcteryx!