Introducing Norvan LD 4 | Free shipping & returns

Please select your preferred shipping region:

  • Australia

  • Austria

  • Belgium

  • Canada

  • China

  • Czech Republic

  • Denmark

  • Finland

  • France

  • Germany

  • Ireland

  • Italy

  • Japan

  • New Zealand

  • Norway

  • Poland

  • Spain

  • Sweden

  • Switzerland

  • The Netherlands

  • United Kingdom

  • 4 4 5.5 4ZM3.5 4C3.22386 4 3 3.77614 3 3.5C3 3.22386 3.22386 3 3.5 3C3.77614 3 4 3.22386 4 3.5C4 3.77614 3.77614 4 3.5 4ZM1.5 4C1.22386 4 1 3.77614 1 3.5C1 3.22386 1.22386 3 1.5 3C1.77614 3 2 3.22386 2 3.5C2 3.77614 1.77614 4 1.5 4ZM2.5 5C2.22386 5 2 4.77614 2 4.5C2 4.22386 2.22386 4 2.5 4C2.77614 4 3 4.22386 3 4.5C3 4.77614 2.77614 5 2.5 5ZM4.5 5C4.22386 5 4 4.77614 4 4.5C4 4.22386 4.22386 4 4.5 4C4.77614 4 5 4.22386 5 4.5C5 4.77614 4.77614 5 4.5 5ZM6.5 5C6.22386 5 6 4.77614 6 4.5C6 4.22386 6.22386 4 6.5 4C6.77614 4 7 4.22386 7 4.5C7 4.77614 6.77614 5 6.5 5ZM7.5 6C7.22386 6 7 5.77614 7 5.5C7 5.22386 7.22386 5 7.5 5C7.77614 5 8 5.22386 8 5.5C8 5.77614 7.77614 6 7.5 6ZM5.5 6C5.22386 6 5 5.77614 5 5.5C5 5.22386 5.22386 5 5.5 5C5.77614 5 6 5.22386 6 5.5C6 5.77614 5.77614 6 5.5 6ZM3.5 6C3.22386 6 3 5.77614 3 5.5C3 5.22386 3.22386 5 3.5 5C3.77614 5 4 5.22386 4 5.5C4 5.77614 3.77614 6 3.5 6ZM1.5 6C1.22386 6 1 5.77614 1 5.5C1 5.22386 1.22386 5 1.5 5C1.77614 5 2 5.22386 2 5.5C2 5.77614 1.77614 6 1.5 6Z"

    United States

Please select your preferred shipping region:

  • Australia

  • Austria

  • Belgium

  • Canada

  • China

  • Czech Republic

  • Denmark

  • Finland

  • France

  • Germany

  • Ireland

  • Italy

  • Japan

  • New Zealand

  • Norway

  • Poland

  • Spain

  • Sweden

  • Switzerland

  • The Netherlands

  • United Kingdom

  • 4 4 5.5 4ZM3.5 4C3.22386 4 3 3.77614 3 3.5C3 3.22386 3.22386 3 3.5 3C3.77614 3 4 3.22386 4 3.5C4 3.77614 3.77614 4 3.5 4ZM1.5 4C1.22386 4 1 3.77614 1 3.5C1 3.22386 1.22386 3 1.5 3C1.77614 3 2 3.22386 2 3.5C2 3.77614 1.77614 4 1.5 4ZM2.5 5C2.22386 5 2 4.77614 2 4.5C2 4.22386 2.22386 4 2.5 4C2.77614 4 3 4.22386 3 4.5C3 4.77614 2.77614 5 2.5 5ZM4.5 5C4.22386 5 4 4.77614 4 4.5C4 4.22386 4.22386 4 4.5 4C4.77614 4 5 4.22386 5 4.5C5 4.77614 4.77614 5 4.5 5ZM6.5 5C6.22386 5 6 4.77614 6 4.5C6 4.22386 6.22386 4 6.5 4C6.77614 4 7 4.22386 7 4.5C7 4.77614 6.77614 5 6.5 5ZM7.5 6C7.22386 6 7 5.77614 7 5.5C7 5.22386 7.22386 5 7.5 5C7.77614 5 8 5.22386 8 5.5C8 5.77614 7.77614 6 7.5 6ZM5.5 6C5.22386 6 5 5.77614 5 5.5C5 5.22386 5.22386 5 5.5 5C5.77614 5 6 5.22386 6 5.5C6 5.77614 5.77614 6 5.5 6ZM3.5 6C3.22386 6 3 5.77614 3 5.5C3 5.22386 3.22386 5 3.5 5C3.77614 5 4 5.22386 4 5.5C4 5.77614 3.77614 6 3.5 6ZM1.5 6C1.22386 6 1 5.77614 1 5.5C1 5.22386 1.22386 5 1.5 5C1.77614 5 2 5.22386 2 5.5C2 5.77614 1.77614 6 1.5 6Z"

    United States

New Footwear

Run steady in the new Norvan LD 4, with a responsive ride, balanced traction, and locked-in fit over mixed, complex terrain.

Free returns

Changed your mind? Return eligible items within 30 days. Start a free return.

Nuclei Pant Men's
£320.00

Nuclei Pant Men's

Rating Distribution

Select a row below to filter reviews.
16 reviews with 5 stars.
2 reviews with 4 stars.
2 reviews with 3 stars.
1 review with 2 stars.
0 reviews with 1 star.

Overall Rating

4.6
17 out of 18 (94%) reviewers recommend this product

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Rating Summary

warmth
zipper
fit
satisfaction
size
large
for cold weather
layering
1 to 8 of 21 Reviews
1 – 8 of 21 Reviews
5 out of 5 stars.

My favorite insulated pant

7 days ago
Synthetic insulated pants are the cornerstone of any cold weather expedition, and these ones are as good as they get! First of all, they are quite warm for their weight, plenty for mountains like Denali and Vinson. They are cut relatively slim in the lower leg compared to some other brands, which means that if you do have to climb in them, you aren't quite as likely to catch a crampon. They are durable enough for daily use, again despite their relatively low weight. And as a bonus, they function great as a belay pant both for ice and rock climbing. Very psyched.
I use this product for:Climbing
Was this helpful?
0 Comments
Age35 to 44
GenderMale
Your Height:168cm - 175cm
3 out of 5 stars.

Sizing not as described

12 days ago
Really love these pants, however im only giving them 3 stars because the sizing is horrible. I've ordered two pairs and none have had the inseam length described on the website. They are much longer. In general I'm truly frustrated by Arcteryx not having ALL pant models offered in "Short Inseam length" and the few you do have, are always sold out. I think you can do better! :) - Also Add zipperd pockets please
Q: Size Purchased:
A: Medium
Q: Pros:
A: Super light, warm, comfortable
Q: Cons:
A: Way to long
I use this product for:Trekking, Climbing, Mountaineering, Hiking
Was this helpful?
Response from Arc'teryx:
11 days ago
Arc'teryx Guest Services
Hi Jesper. Thanks for sharing your feedback on the Nuclei Pant. We are sorry to hear that you are disappointed with the fit and that it did not suit your needs. We will pass your comments to our team.
0 Comments
Nevada
Age35 to 44
GenderMale
Your Height:168cm - 175cm
5 out of 5 stars.

Simple, warm, durable!

29 days ago
Amazing full side zip belay pants. So comfortable and durable! Pack down well too. Truly one of the best insulated pant options ever from Arc. A must have for any cold weather cragging!!!
Q: Size Purchased:
A: XS
I use this product for:Climbing

Yes, I recommend this product.

Was this helpful?
0 Comments
Vanlife
Age25 to 34
GenderFemale
Body TypeAthletic
5 out of 5 stars.

Don't know how I went so long without these!

a year ago
I don't know how I survived 5 years of vanlife and winter climbing without puffy pants! These are an absolute game changer when it comes to weathering cold days out climbing or adventuring. From pulling on in the frosty morning while making coffee to wearing between burns on a project, these pants will keep you toasty warm. The reinforced knees and backside improve durability as well. For sizing reference, I wear a 2 or 4 in most Arc pants and ordered a size Small in the Nuclei puffies. This is big enough for me to pull on over a base layer and harness.
Q: Size Purchased:
A: Small
Q: Pros:
A: Warmth!
Q: Cons:
A: Needs two-way zipper on the sides
Q: Activity
A: Climbing
Q: Your Height:
A: 170 cm

Yes, I recommend this product.

Originally posted on Nuclei Pant, 2021-2023

Was this helpful?
0 Comments
Colorado
Age45 to 54
GenderMale
Body TypeLean
5 out of 5 stars.

Love these pants

a year ago
Great pant. Have used down in to the teens Fahrenheit. The front “half” of the waist if you think side zipper to side zipper, again in the front, is adjustable. This is a great design and perhaps the only solution to adjustability with full side zips. If you plan to have more than close fitting clothing I think sizing up would be ok . Say over bulkier hiking pants, for example. Weight is pretty amazing for product being synthetic and warmth. Knees and seat material are nice and more robust where needed.
Q: Size Purchased:
A: M
Q: Pros:
A: Side zip, synthetic, adj waist, lbs
Q: Cons:
A: Price
Q: Activity
A: Down time Climbing, hiking skiing
Q: Your Height:
A: 6’0

Yes, I recommend this product.

Originally posted on Nuclei Pant, 2021-2023

Was this helpful?
0 Comments
Sweden
Age45 to 54
GenderMale
Body TypeSolid
4 out of 5 stars.

Warm and comfy but slippery

a year ago
I bought them to wear on cold days and so far they perform as planned, warm and comfy. I however would have like them to have either a ”silicon non slip”-strip on the inside of the hem or suspenders, since the pants tend to slip down, especially if you are wearing fleece or other shell pants underneath.
Q: Size Purchased:
A: Xxl
Q: Pros:
A: Warm and comfy
Q: Cons:
A: Slippery on the inside
Q: Activity
A: Cold Winter activities
Q: Your Height:
A: 183

Yes, I recommend this product.

Originally posted on Nuclei Pant, 2021-2023

Was this helpful?
0 Comments
Nuclei Pant
rating 4.5714 out of 521 Reviews

Durable, abrasion-resistant, and warm – a packable belay pant for harsh alpine realities.


£320.00

Colour:Black
Size:


Free shipping & Free returns


Nuclei Pant Men's

Rock, ice, and cold. Alpine environments are ruthless. Made for these conditions, the Nuclei Pant is tough, packable, weather-resistant, and warm. 80g Coreloft insulates waist to knee, and a lighter-weight PrimaLoft Gold insulates the lower leg. Made from 100% recycled nylon, the Pertex® Diamond Fuse outer has a unique, highly durable diamond filament construction. Our abrasion-resistant Hadron LCP fabric reinforces the seat and lower leg and has a PU coating for added water resistance.

What's been updated: Updated with durable Pertex® Diamond fuse mini-ripstop face for lightweight durability and wind protection and acrylic-coated Hadron® LCP (Liquid Crystal Polymer) grid fabric reinforcements for durability and water repellency.

Climb

Climbing equipment designed for efficient movement and protection in alpine environments.

Windproof material

Impervious to wind and offers significant weather resistance with lighter weight protection.

Synthetic insulation

Man-made insulation with quick dry times, durability and retains warmth when damp.