The Arc'teryx Kyanite Hoody is ¥34,100 and 425 g (men's). It sits in the Fall 2026 new arrivals as a fleece made from a new recycled fabric. I make it my pick for a first mid layer to wear under a hardshell.
The Gear Nerd's Pick
The Kyanite is a two-layer fabric: abrasion-resistant 4-way stretch nylon outside, brushed fleece inside. Tough on the outside, moisture-moving on the inside. That's why I count it as a hiking mid layer that you wear under a shell and keep moving in.
Key points
- 425 g, ¥34,100. 30 g heavier than the Kyanite Jacket and ¥4,400 more
- 70 g heavier than the Atom Hoody (355 g, ¥49,500), but ¥15,400 cheaper
- Polartec Power Stretch Pro, fabric made in the USA. The fabric changed to a recycled material in Fall 2026
Kyanite Hoody price and weight: ¥34,100, 425 g
The Kyanite Hoody (men's) costs ¥34,100 including tax and weighs 425 g. It comes in sizes XS to XL, and the fabric has changed to a new recycled material.
It is a versatile fleece designed for short climbs, cold-day hikes, and even the chill when you first wake up.
How I judged it
The first thing I looked at was whether it has a hood. The hoody is 425 g and the hoodless jacket is 395 g, a 30 g difference. The price gap is ¥4,400. Next I compared it with the Atom Hoody (355 g): 70 g lighter, but ¥15,400 more. What I hesitated over was whether to add 30 g for a hood. I still recommend it, because a cold neck matters more than a lighter jacket. It suits people who walk ridgelines in chilly weather.
Image: Rakuten Ichiba
Arc'teryx Kyanite Hoody Men's
Lowest price on Rakuten: ¥34,100 (as of 10/20). Prices change daily.
RecommendedSee it on Rakuten IchibaKyanite Hoody specs
| Item | Kyanite Hoody Men's |
|---|---|
| Price (incl. tax) | ¥34,100 |
| Weight | 425g |
| Fabric | Power Stretch Pro (nylon / brushed polyester, 248 gsm) |
| Blend | 53% polyester, 38% nylon, 9% polyurethane |
| Hood | Low-profile hood |
| Pockets | 2 hand pockets (laminated zips) |
Kyanite Hoody cuffs, hem and zip: how is it built?
The cuffs, hem and collar use a durable Tanica stretch material. The front zip is a No Slip Zip with a chin guard. The back length is 67 cm in M.
The fabric is made in the USA and has changed to a new one using recycled material. The low-profile hood is slim enough to layer under a shell without bunching.
What's good about a two-layer fabric?
This is the part I'm excited about. The two layers do different jobs, so you take it on and off less often. The outside is abrasion-resistant nylon that resists fuzzing even when a pack strap rubs it. The inside is brushed polyester that moves moisture away from your body.
The fabric is Polartec Power Stretch Pro. It stretches in four directions, so the hem is less likely to ride up when you raise your arms. Gussets under the arms also hold the hem down.
Comparing the Jacket and the Atom Hoody
| Model | Weight | Price (incl. tax) | Per gram |
|---|---|---|---|
| Kyanite Hoody | 425g | ¥34,100 | ¥80 |
| Kyanite Jacket | 395g | ¥29,700 | ¥75 |
| Atom Hoody | 355g | ¥49,500 | ¥139 |
The gap to the Jacket is 425 g − 395 g = 30 g, and ¥34,100 − ¥29,700 = ¥4,400. If you often skip the hood, the Jacket is enough.
Image: Rakuten Ichiba
Arc'teryx Kyanite Jacket Men's
Lowest price on Rakuten: ¥35,800 (as of 10/20). Prices change daily. For clothing, check the maker's size chart (height, chest, waist) against your own measurements. If unsure, check the shop's return and exchange terms.
RecommendedSee it on Rakuten IchibaThe Atom Hoody is a different kind of mid layer, with synthetic insulation. The Beta Insulated review compares the choice of putting insulation and shell in one jacket.
Before you buy the Kyanite Hoody: check the model number and colors
The model number of the men's Kyanite Hoody is X000008446. It is separate from the women's and from the pullover hoody, so checking the number when you shop helps you avoid mixing them up.
As of Oct 20, the official store shows 2 colors: Cloud and Black. Sizes run from XS to XL.
Where it falls short
Fleece lets wind through. It suits layering under a shell more than wearing it alone on a windy ridge. For the same weight, you get less warmth than from the insulated Atom Hoody.
Who is it for?
It suits people looking for a mid layer under a hardshell in the ¥30,000 range. It also suits people who want something that stays comfortable while they keep moving on hikes and short climbs in the cold. If you want to wear it alone on a windy day, layering a wind shell over it is another way to go.
FAQ
How much does the Kyanite Hoody weigh?
The men's hoody is 425 g. The Kyanite Jacket, without a hood, is 395 g.
How much does the Kyanite Hoody cost?
The official online store lists it at ¥34,100 including tax.
What is the Kyanite Hoody made of?
It is Polartec Power Stretch Pro. The outside is nylon and the inside is brushed polyester. The blend is 53% polyester, 38% nylon and 9% polyurethane.
What sizes does the Kyanite Hoody come in?
XS to XL. The back length is 67 cm in M.
