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Arc'teryx Rho AR Zip-Neck Top - Women's


Rho AR Zip-Neck Top

Rho, the 17th letter of the Greek alphabet, carries many meanings. You might not find it on wiki, but in this instance, the Arc'teryx Rho AR Zip-Neck Top signifies a midweight thermal baselayer. Polartec Power Stretch fabric offers warmth without much weight, and it wicks moisture to keep your temperature constant. A trim fit prevents sweat from accumulating on your skin, thus reducing the probability of sweat-induced shivers. Unzip the neck zipper when your core temperature climbs. Wear the Rho on its own or over a silkweight shirt for high-intensity aerobic activity in cold weather, or layer the Rho under jackets and shells for less intense endeavors in single-digit temps.

  • Polartec Power Stretch, wicks moisture, dries quickly
  • Trim fit
  • Flatlock seams
  • Half-length neck zipper
  • Laminated sleeve pocket with laminated zipper
  • Item #ARC3626

Polartec Power Stretch (88% polyester, 12% elastane)
1 laminated zippered sleeve
Claimed Weight
(medium) 8.2 oz
Recommended Use
ice climbing, hiking, skiing, snowboarding, nordic skiing, snow shoing, shoveling, snow-man building
Manufacturer Warranty

Tech Specs

What do you think about this product?



Fall is for fluffy fleece

My Arcteryx RHO AR was the perfect layer for some fall hiking in Grand Teton NPS.

>Rating: 5

Awesome baselayer

I've used it several times
True to size

I wear this baselayer all day for work. It keeps me warm when it's cold out, and even when the weather warms up I don't get too hot in it. As always, Arc-teryx is the best there is!