Arc'teryx Rho LTW Zip Neck - Women's


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Arcteryx has done it; they have created the ideal baselayer for any activity when they designed the Arcteryx Rho LTW Zip for Women.
Constructed with soft, itchless, stretch knit merino wool, the Rho LTW insulates even when completely saturated, regulates temperature far better than a synthetic baselayer, and resists odor, even on a week long backcountry trip.
A collar zip makes for easy layering and great ventilation and the form fitting silhouette and no-lift gusseted underarms give you the freedom to move without restriction.


  • Mountain merino knit wool
  • Great warmth-to-weight ratio
  • Form fitting
  • Collar zip
  • No-lift gusseted underarms
  • Odor resistant
  • One laminated sleeve pocket with laminated zip
  • Warm when wet
  • 7.7oz/ 219g

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Review Summary

4.7 out of 5

10 Reviews

  • Build quality: 5
  • Performance: 3
  • Ease of use: 2
  • Great design: 2

  • too bad it's not made longer: 1
  • zipper could be longer: 1
Durability: 4.7 / 5
Quality: 4.5 / 5
Comfort: 4.3 / 5
Fit: 2 / 5
Wind Protection: 1.8 / 5
Water Protection: 1.6 / 5

10 Ratings & Reviews

Comfort: 2 / 5
Durability: 5 / 5
Quality: 3 / 5
FitClothes: 2 / 5
WaterProtection: 1 / 5
WindProtection: 2 / 5
from Virginia
45-54 yrs

For shorter women
January 29, 2011

I bought this shirt to wear as a base layer for running in the cold. The shirt is great except that it rides up and comes untucked. I have a longer than average torso (I'm five foot nine), and was really disappointed when this shirt road up after running for a couple of miles. I really wanted to like it.

Pros: Build quality, Lasts forever, Great value

light weight and warm
October 27, 2009

The description tells it all, itchless wool that keeps you warm without weight. It is soft and stretchy- it has a close fit but very comfy. My "go-to" base layer.

Great product but order up a size
October 27, 2009

This is a great baselayer but fit a little tighter than I was expecting. It's 95% wool/5% Lycra. I plan to return my medium for a large.

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
from Eastern Washington State
45-54 yrs

Just what I wanted
November 24, 2010

I love the fact that this warm layer fits snugly, but is very stretchy and comfortable to wear as well as to put on and take off.

Pros: Great design, Build quality, Performance, Ease of use

worth every penny
January 11, 2010

I love this piece because it does the job. Close fitting. Warm as toast. Washes well (follow instructions) I loved the black one so much I got brown one too. Fantastic base layer!

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
WaterProtection: 1 / 5
WindProtection: 1 / 5

from Seattle, WA
35-44 yrs

Awesome base layer!
October 19, 2010

Wow! This top is wonderful. I bought one last year and loved it so much that wore it alot running errands, on various outdoor activities. It handled the body movement very well. It is very stylish and doesn't look like a cheap baselayer. You gotta get it tight to your body for maximum moisture wicking benefit.

Pros: Great design, Build quality, Lasts forever, Performance, Ease of use
Comfort: 5 / 5
Durability: 4 / 5
Quality: 5 / 5
FitClothes: 2 / 5
WaterProtection: 3 / 5
WindProtection: 3 / 5

from ca
25-34 yrs

good shirt.
December 02, 2010

I have owned men's rho lt zip. It is warm, soft and comfortable. Gave a gift to my wife. My wife said, "really the best shirt '

Comfort: 4 / 5
Durability: 4 / 5
Quality: 4 / 5
FitClothes: 2 / 5
WaterProtection: 1 / 5
WindProtection: 1 / 5

from Idaho
55-64 yrs

Warm base layer
April 21, 2011

I bought this to wear as a base layer on extremely cold days in the winter as I snowshoe everyday. I found the fit to be snug but it is a stretchy shirt and I wore another layer over the top. It kept me warm and comfortable.

Pros: Build quality, Cons: zipper could be longer

love it!
October 14, 2011

This top is really warm considering how thin it is. The cut is fitted but allows lots of movement. I'm 5'4, 135 and the small is tight. I wear it almost everytime I go out now that winter is here! I definitely recommend it.

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
FitClothes: 2 / 5
WaterProtection: 2 / 5
WindProtection: 2 / 5
from Denver, CO
25-34 yrs

No regrets
June 10, 2011

The only complaint I have is that I wish this top were several inches longer. I have a long torso and while this top is longer than Patagonia's offerings, I wish it were just a few inches longer. Regardless, this top is warm, very stretchy, not itchy, and perfect for the backpacker, hiker, or climber. I purchased this top for extended backpacking trips and climbing. While I have yet to take it out on the trail for days, I have worn it climbing and it has performed wonderfully. I have washed it-- in cold water with Tech Wash, and have not had any problems with shrinking. However, I did first order an extra-small, as I wear an extra-small in everything, and had to exchange for a small. It fits like a glove even then, so if you want something with more room for multiple base layers, order a size or two larger. I could have gone with a medium and been fine. This top is definitely worth the investment!!

Pros: Build quality, Performance

Also Available

Arc'teryx Women's Rho LTW Zip Neck Photo

Black, Calypso and Honey Bee.

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

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