The Millet Semnoz Ripstop Pants are brushed-back pants announced on Oct 7 as part of the fall/winter 2026 line. They cost ¥16,500 (incl. tax) and weigh 402g (men's M). If you want to keep walking in cold-season low mountains all the way to town after the descent, they're a buy.
The Gear Nerd's Pick
These pants pair a water-repellent ripstop outer with a brushed mesh lining. The brushed lining traps air between its fibers and builds a warm layer between your legs and the fabric. That's why I'd show these first to people who find layering tights under winter pants a hassle. Fewer layers also makes it easier to manage the heat on climbs.
Key points
- 402g and ¥16,500 in men's M. Price per gram: 16,500 ÷ 402 = about ¥41.0
- 188g lighter than the winter staple Monte Rosa Pants (590g, ¥18,150)
- Roomy cut: the hip in M is 120cm, 12cm bigger than the Monte Rosa in M
Are the Semnoz Ripstop Pants a buy for winter low mountains?
In November, low mountains make you sweat on the climb and chill your legs at the summit break. Add tights under thin summer pants and you overheat on the way up. It's a common dilemma when choosing winter pants.
The Semnoz Ripstop Pants are a new release meant to answer that dilemma with one pair. Millet pitches them for cold-season hiking and for wearing straight through to town after the descent.
How I judged it
The first thing I looked at was the lining. The outside is water-repellent ripstop and the inside is brushed mesh, so the warmth lives in the lining. Next I lined them up against Millet's own winter staple, the Monte Rosa Pants. What gave me pause is that no stretch fabric is listed. Still, if you get a brushed lining at 188g lighter and ¥1,650 less, I'd recommend it as a winter low-mountain pair.
Image: Rakuten Ichiba
Millet Semnoz Ripstop Pants (men's)
Lowest price on Rakuten: ¥15,150 (as of 10/18). 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 RakutenWhen do the Semnoz Ripstop Pants come out? Price and numbers
| Item | Semnoz Ripstop Pants |
|---|---|
| Release / price | New for fall/winter 2026 (announced Oct 7) · ¥16,500 |
| Weight | 402g (men's M) · 364g (women's S) |
| Fabric | Outer: water-repellent ripstop, 100% polyester / Lining: brushed tricot, 100% polyester |
| Build | Hand pockets, rear zip pocket, drawcords at waist and hem, an inseam cut from one piece of fabric with no seam, antibacterial deodorizing tape in the crotch |
| Sizes and colors | Men's XS to XL (European sizing) · 3 colors |
The one-piece inseam panel is a small detail that matters. Fewer seams along the crotch means fewer places where your inner thighs rub with every step.
How do they differ from the winter staple Monte Rosa Pants?
| Model | Weight | Price | Hip in M / inseam |
|---|---|---|---|
| Semnoz Ripstop Pants | 402g | ¥16,500 | 120cm / 76.5cm |
| Monte Rosa Pants | 590g | ¥18,150 | 108cm / 82cm |
Here I'll gush. 590 − 402 makes it 188g lighter, and 18,150 − 16,500 makes it ¥1,650 cheaper. On winter pants, a gap close to 200g shows up on climbs where you lift your legs a lot. And the lining is brushed, so you don't chill at rest stops.
The Monte Rosa is a pair built around stretch double-weave nylon and an inseam gusset for easy leg lifts. It also suits rocky routes with big steps, and anyone who likes a slim cut.
Image: Rakuten Ichiba
Millet Monte Rosa Pants (men's)
Lowest price on Rakuten: ¥9,075 (as of 10/18). Prices vary by shop, up to ¥12,496, and 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 RakutenWhat makes ripstop fabric good?
Ripstop is a fabric woven with thicker threads at regular intervals in a grid among the fine ones. If a branch snags it and opens a small hole, the tear tends to stop at the thick threads.
Winter low-mountain trails often run past bare scrub and branches. A light fabric that resists tearing is a quiet strength of these pants. Together with the water-repellent outer, you can wear them without worry on mornings with frost or light snow.
How do you pick the size?
The cut is roomy: the hip in M is 120cm, 12cm bigger than the Monte Rosa in M. The inseam in M is 76.5cm, 5.5cm shorter than the Monte Rosa.
The hem tightens with a drawcord, so even a long length won't flap around your feet. If length worries you, compare the finished inseam against the pants you own now, and the choice gets easier.
Who it suits
The best fit is someone who walks low mountains and hills on clear days from November to March. With antibacterial deodorizing tape and a rear zip pocket at ¥16,500, they also suit someone buying their first winter hiking pair. They also don't look out of place on days when you stop at a hot spring or in town after the descent.
On rainy or sleet days water repellency isn't enough, so layer waterproof pants over them. The pair to layer is covered in the Typhon Warm Pants review.
Image: Rakuten Ichiba
Millet Typhon Warm Pants
Lowest price on Rakuten: ¥33,000 (as of 10/14). 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 RakutenSee it on Yahoo! Shopping JapanFor sorting out sweat on your upper body, you can pick underwear in the hiking base layer rankings.
FAQ
When do the Semnoz Ripstop Pants come out?
Millet announced them on Oct 7 as part of the 2026 fall/winter line. The price is ¥16,500 (incl. tax), and they're on sale at the official online store and retailers.
How much do the Semnoz Ripstop Pants weigh?
402g in men's M and 364g in women's S.
Can you wear the Semnoz Ripstop Pants in the rain?
The outer fabric is water-repellent, not waterproof. On rainy days, layer waterproof over-pants on top.
