【New in Oct 2026】【Hardcore Hiker's Honest Review】Millet Typhon Nova Jacket Review: 390g, 50,000mm, ¥49,500

The Typhon Nova Jacket fits a 50,000mm waterproof rating into 390g with a new membrane whose roughly 50-nanometer pores let only air through, and that is what impresses me. Millet announced it on Oct 20, 2026. If your climbs in the rain leave you soaked with sweat inside, buy it. It is 90g heavier and ¥13,200 more than the Typhon Stretch, though, so if you choose on weight and price, another jacket suits you better.

The Gear Nerd's Pick

Inside this jacket is not a Gore-Tex-style film but a new membrane of expanded polypropylene. The pores are uniform in size, so water stays out and only air gets through. So I count it as a jacket for fighting sweat. The 90g and ¥13,200 difference is easier to earn back the more you sweat on the climb.

Skip the reasoning and see the gear first ↓

Key points

The waterproof rating is 50,000mm, higher than the Typhon Stretch at 30,000mm and the Typhon 50000 Stretch at 20,000mm
The gap to the Typhon Stretch Jacket (300g, ¥36,300) is 90g and ¥13,200. That is ¥126.9 per gram
With the pants in the same fabric (356g, ¥41,800), the pair comes to 746g and ¥91,300

【New in Oct 2026】Millet Typhon Nova Jacket Review | 390g, 50,000mm, ¥49,500

The Typhon Nova is a waterproof jacket that "breathes." A 50,000mm rating at 390g is impressive

Sweat inside a rain jacket is a problem that a higher waterproof number does not fix. The Nova gives a different answer: the fabric membrane itself has a very slight air permeability.

Millet announced it on Oct 20, 2026. It costs ¥49,500 incl. tax (unisex), the most expensive of the 4 Typhon jackets compared on this page, 1 of them.

How I judged it

The first thing I looked at was what "breathable" actually means. The membrane is expanded polypropylene with 80% porosity and pores of about 50 nanometers, all the same size. Water stays out and only air passes. What I hesitated over was the price: it is ¥13,200 more than the Typhon Stretch Jacket. I still recommend it because it is a jacket that attacks the cause of the sweat from the membrane side. It suits people who climb at high intensity on day hikes up to hut stays and get soaked inside their rain gear.

Image: Rakuten Ichiba

Millet Typhon Nova Jacket

Lowest price on Rakuten: ¥49,500 (as of 10/22). 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 Ichiba

Typhon Nova Jacket weight and numbers

As shown on Millet Japan's official online store on Oct 22, 2026 (MIV02163). Prices include tax; sizes are European, XXS to XL.
Item	Listing
Price	¥49,500
Weight	390g
Waterproof rating	50,000mm
Fabric	Typhon Nova 3-layer, 100% nylon, water-repellent finish (PFC-free)
Hood	Helmet-compatible, wired visor
Ventilation	Waterproof underarm zip vents

That is ¥126.9 per gram (¥49,500 ÷ 390g). Higher than the Typhon 50000's ¥115.8, so this is clearly the premium side, 1 jacket.

How it differs from the Typhon Stretch, 50000 and Warm

As shown on Millet Japan's official online store on Oct 22, 2026. Prices are regular prices incl. tax.
Model	Weight	Waterproof rating	Price
Typhon Nova (this one)	390g	50,000mm	¥49,500
Typhon Stretch	300g	30,000mm	¥36,300
Typhon 50000 Stretch	304g	20,000mm	¥35,200
Typhon Warm	504g	30,000mm	¥39,600

The gap to the Typhon Stretch is 390g − 300g = 90g and ¥49,500 − ¥36,300 = ¥13,200. Spread over 10 outings, that is ¥1,320 each. I see it as the price for sweating less, possibly. If you choose on weight alone, the Stretch (300g) comes out ahead.

Going by numbers alone, the Typhon 50000 Stretch is 86g lighter and ¥14,300 cheaper, with a waterproof rating of 20,000mm. I wrote up the numbers and construction in the Typhon 50000 Stretch Jacket review.

It is 114g lighter than the Typhon Warm and ¥9,900 more. The Warm is a brushed-lining jacket for winter; the Nova lets sweat escape through breathability, so they do different jobs. The Typhon Warm Jacket review is here.

How does the breathability work on a cold day?

A membrane that lets air through makes you wonder whether wind will chill you. Millet says it tuned the airflow to block outside air and confirmed this in sub-zero lab tests. That is Millet's own testing, not my measurement.

A high waterproof rating also depends on how you use the jacket. Even with a high number, water gets in more easily where you sit down or where a pack presses against the fabric. Don't relax on the strength of the number alone.

As a pair, 746g and ¥91,300

The "Typhon Nova Pants" in the same fabric are 356g and ¥41,800 (unisex). 390g + 356g = 746g, and ¥49,500 + ¥41,800 = ¥91,300. Buying the pants too puts you in the ¥90,000 range, so choosing only the jacket first is the realistic move.

Who is it for?

It suits people who sweat heavily on the climb and are bothered by humidity inside their rain gear. The strength of this new jacket is that it answers "breathability" from the membrane side.

If weight comes first, the 300g Typhon Stretch is enough. For anyone keeping the cost down, starting there is plenty.

FAQ

When does the Typhon Nova go on sale?

Millet announced it on Oct 20, 2026. The jacket is ¥49,500 and the pants are ¥41,800 (both incl. tax).

How much does the Typhon Nova weigh?

The jacket is 390g and the pants are 356g, 746g for the pair.

How does the Typhon Nova differ from the Typhon Stretch?

The Nova is 90g heavier and ¥13,200 more, with a waterproof rating of 50,000mm against 30,000mm. Its membrane is a new material with slight air permeability.

What is the Typhon Nova's waterproof rating?

It's 50,000mm, higher than the 30,000mm of the Typhon Stretch and Typhon Warm and the 20,000mm of the Typhon 50000 Stretch.

Can I use the Typhon Nova in the winter mountains?

Millet says it checked the membrane in sub-zero lab tests. No usable temperature range is given, so I treat it as one layer in a kit chosen for the mountain I'm going to.

Gear in this article

Ad · Images: Rakuten Ichiba