All-new Vertex Speed | Free shipping & returns

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  • 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

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  • Norway

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  • 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

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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

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Rating Summary

warmth
comfort
purchase
fit
layering
satisfaction
wearing
softness
9 to 38 of 56 Reviews
9 – 38 of 56 Reviews
Alberta
Age25 to 34
GenderFemale
Your Height:176cm - 182cm
1 out of 5 stars.

Holes and Pilling

4 months ago
I have had these for less than a year and only worn a handful of times. Of those times I wore them I was either lounging at home or sleeping in my sleeping bag in a tent. Even with that limited activity they developed a hole in the middle of the front of my thigh, and have pilled like crazy in the inner thigh. While I would expect some piling, I would not expect it to this level for basically no activity and definitely would not expect a hole after such limited use and for such a high price point. I am very disappointed and would not recommend.
Q: Cons:
A: Poor quality

No, I do not recommend this product.

Originally posted on Rho Heavyweight Bottom, 2022-2024

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Response from Arc'teryx:
4 months ago
Customer Service
Hello there, thank you for sharing your experience with the Rho Heavyweight Bottom. We’re sorry to hear about the issues with pilling and the development of a hole after limited use. We see that you've already reached out to our After-Sales team, and a resolution has been offered. We appreciate your patience and hope to provide a satisfactory outcome. Your feedback has been shared with our product team to help improve future designs.
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Milwaukee, WI
Age25 to 34
GenderFemale
5 out of 5 stars.

Best Baselayer

5 months ago
This is my go to baselayer for outdoor activities on the coldest of days. Comfy, warm, and fits well under other layers without a ton of bulk.
Q: Size Purchased:
A: Small
I use this product for:Climbing, Mountaineering, Ski/Snowboard

Yes, I recommend this product.

Originally posted on Rho Heavyweight Bottom, 2022-2024

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Vancouver, BC
Age35 to 44
GenderFemale
Your Height:153cm - 160cm
5 out of 5 stars.

Super warm cozy bottoms!

5 months ago
These bottoms are super soft and comfortable, and are my go-to base layer for cold weather low output activities like easy hikes, mellow resort days, or just wearing around the city. I like the side pocket for my phone if i’m wearing them as my only layer, or my keys if they are under a shell.
Q: Size Purchased:
A: S
Q: Pros:
A: warm, comfortable, looks good
I use this product for:Commuting/Travel, Trekking, Casual Wear, Hiking, Ski/Snowboard

Yes, I recommend this product.

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Canada
Age45 to 54
GenderFemale
Your Height:176cm - 182cm
5 out of 5 stars.

Great base layer for skiing.

5 months ago
Love the leg side pocket for keeping the phone warm while touring.
Q: Size Purchased:
A: Large
Q: Pros:
A: warm and stretchy
I use this product for:Ski/Snowboard

Yes, I recommend this product.

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Originally posted on Rho Heavyweight Bottom, 2022-2024

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Fernie BC
Age35 to 44
GenderFemale
Body TypeAthletic
5 out of 5 stars.

Perfect for cooler days.

a year ago
I jumped online to purchase another pair of these bottoms today because I ended up wearing the ones that I bought last year so frequently. They’re very soft against my skin, they stay in place, and give a little bit of extra warmth for riding the chairlift or at work heliskiing. They look great too. I’m not sure what I would ever use the pocket for, but it does add a nice look to the legging, which is useful for me at work if I don’t have time to change between skiing and aprés but don’t want to wear my ski pants.
Q: Size Purchased:
A: M
Q: Pros:
A: Warm, soft, stay put
Q: Cons:
A: I don’t own another pair yet
Q: Activity
A: Skiing
Q: Your Height:
A: 5’9”

Yes, I recommend this product.

Originally posted on Rho Heavyweight Bottom, 2022-2024

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Steamboat Springs, CO
Age55 to 64
GenderFemale
Body TypeAthletic
3 out of 5 stars.

Too short, stretched out after minimal use.

a year ago
These are warm but as stated in other reviews, too short. I've had them for several months now and they do not keep their shape - kind of saggy. Bummed as my older pair were perfect for length, warmth, and keeping their shape.
Q: Size Purchased:
A: m
Q: Activity
A: Run/hike/walk
Q: Your Height:
A: 5'9"

No, I do not recommend this product.

Originally posted on Rho Heavyweight Bottom, 2022-2024

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9 – 38 of 56 Reviews
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.