All-new Vertex Speed | 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 the climb in the new Vertex Speed, with a hybrid midsole for grip and speed into the ridgeline.

Free returns

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

Kyanite Baselayer Bottom Women's
€120.00

Kyanite Baselayer Bottom Women's

Rating Distribution

Select a row below to filter reviews.
35 reviews with 5 stars.
8 reviews with 4 stars.
6 reviews with 3 stars.
1 review with 2 stars.
6 reviews with 1 star.

Overall Rating

4.2
35 out of 42 (83%) 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
comfort
purchase
layering
fit
satisfaction
wearing
softness
1 to 8 of 56 Reviews
1 – 8 of 56 Reviews
5 out of 5 stars.

Glad they are back in production!

21 days ago
I had two pairs of the previous version. My puppy put holes in them. The new version has an updated waist that will be even better for backpacking. I like the thigh pocket as well - fits a phone so I am more likely to take photos of my adventures.
Was this helpful?
0 Comments
Vancouver, BC
Age25 to 34
5 out of 5 stars.

New Winter Staple Piece

2 months ago
This is definitely a new winter staple for me! I wore this underneath another pair of pants when hiking in the snow and it kept me warm when it was about -2° C outside. I don’t think I would wear this on its own unless I’m lounging at home
Q: Size Purchased:
A: Small
I use this product for:Casual Wear, Hiking
Was this helpful?
0 Comments
Wilmington, DE
AgeOver 64
GenderFemale
Your Height:176cm - 182cm
3 out of 5 stars.

Improved styling

2 months ago
The fit and styling is much improved from my last pair of RHO leggings and was excited to find that I could replace them with these. However the fabric seems thinner and not as warm as some other polartec tights I have which are soft and cosy for my dog walks in frigid weather. I feel that these are really a base layer or to be worn in milder weather. I like the tatsu color but would prefer a darker olive and since I am on taller side, another 1/2" in length would help to tuck inside socks/boots. Since I have already worn them, I plan on keeping them but am still on the hunt for some soft warm leggings!
Q: Size Purchased:
A: Large
Q: Pros:
A: Fit: Flat seaming: Leg pocket
Q: Cons:
A: fabric thin not warm: short inseam
I use this product for:Casual Wear, Hiking

Yes, I recommend this product.

Was this helpful?
Response from Arc'teryx:
2 months ago
Arc'teryx Guest Services
Hi there. Thanks for sharing your feedback on the Kyanite Baselayer Bottom. We appreciate your comments and we will make sure to pass them to our team.
0 Comments
Kyanite Baselayer Bottom
rating 4.1607 out of 556 Reviews

Warm, versatile Polartec® Power Stretch® Pro base layer for cold conditions.

The Kyanite Baselayer Bottom was previously the Rho Heavyweight Bottom.


€120.00

Colour:Tatsu
Size:


Free shipping & Free returns


Kyanite Baselayer Bottom Women's

The Kyanite Baselayer is made for cold days and mixed output. On the move, the Polartec® Power Stretch® Pro stretches for outstanding freedom of movement. During rest phases – or when it gets really cold – the fleece’s soft brushed interior traps heat to keep you warm. The fleece’s durable nylon outer has a smooth face for comfort under layers, and a zippered thigh pocket secures small essentials.

What's been updated: Updated with a new fabric made with recycled content.

Polartec®

Synthetic fleece textiles with stretch, warmth and air permeable properties. Offers durability.

Multi-use

Versatile high performance designs for diverse activities and conditions.