Arc'teryx Rho AR Bottom - Men's


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Worn as an outer layer during cold-weather aerobic activities or as a layering piece when an expedition-weight base layers is required, the Arcteryx Rho AR Bottom for Men will keep you warm and dry; built with insulating Polartec Power Stretch Fleece that also works to wick moisture away from your skin. Durable on the outside, with next-to-skin softness on the inside, the Rho AR Bottoms are an essential addition to your active, cold-weather wardrobe.


  • Polartec® Power Stretch®
  • One laminated thigh pocket with laminated zip
  • Great warmth-to-weight ratio
  • Form-fitting
  • Weight: 9oz / 255g

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Review Summary

4.8 out of 5

6 Reviews

  • Build quality: 2
  • Great design: 1

Comfort: 5 / 5
Quality: 4.7 / 5
Warmth: 5 / 5

6 Ratings & Reviews

Overall very nice if it fits you.
January 02, 2010

I tried it on but ended up returning it due to the fit. It's light and very warm from what I can feel. However, it was too short for me. Me: 6' tall, 32 inseam, 180lbs with 42 shoulder/33 waist. I got a Large due to my rather large butt/thighs. It was loose and way to short. I'm thinking maybe mine was defective? I was going to order a Medium but I was afraid that will be too short as well.... My initial impression was good, just too short for my legs.

Comfort: 5 / 5
Quality: 5 / 5
Warmth: 5 / 5

Warm bottem
October 18, 2010

I have a Patagonia Capilene 3 bottom, but in the winter, it is not very well for the cold weather. So I bought this bottom, without doubt, this Rho Ar bottom is much warmer than patagonia C3 bottom, I don't need to worry the coming winter, Moreover, this bottom is more comfortable, I am so satisfied.

Comfort: 5 / 5
Quality: 4 / 5

Great bottom
November 04, 2010

It is soft and warm. It is light and good fit.These work great as a mid to heavy weight base layer under softshell pants for cold days and function good for trail running as well.

Pros: Build quality

great bottom
March 08, 2010

It is soft and warm. Great pants for a cold day.It is very comfortable.I love them.

Comfort: 5 / 5
Quality: 5 / 5

from VA
35-44 yrs

October 22, 2010

I think this is the best choice in winter.I always believe Arc'teryx's quality.Very light and warm.The waist of size M is 74-92cm.Long is 96cm.I hope more people enjoy this.

Pros: Great design, Build quality

Soft and warm
November 30, 2010

Use these as my warm bottoms baselayer. Used them on a recent winter attempt on Rainier. While I failed these (Plus my Gamma SKs) kept me warm in some serious wind. I also use them skiing in Washington with some Hardshell bibs. I'v used them from 25 to 50 degrees; waiting till next year to push them colder.

Also Available

Arc'teryx Men's Rho AR Bottom Photo


Available sizes, while supplies last, include size small, size medium, size large, size extra large and size extra extra large: s, m, l, xl, xxl.

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