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Arc'teryx Sigma SL Anorak - Women's

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sale $116.35 Original price:$179.00

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Sigma SL Anorak

Arc'teryx designed the Women's Sigma SL Anorak for climbing in cool, windy weather. It's a lighter option out of the Sigma collection, and its Aequora Airperm fabric is air permeable for enhanced breathability suitable for hard climbs. The fabric also stretches and resists wind and moisture in case it starts raining on you. The trim fit gives a modern look for life off the rock, and articulated patterning ensures freedom of movement for life on the rock.
  • Superlight anorak for climbing in windy, cool weather
  • Aequora Airperm fabric is air permeable and weather-resistant
  • Trim, articulated fit ensures freedom of movement and easy layering
  • Hooded anorak with deep half-zip for rapid ventilation
  • Item #ARC00W7

86% nylon, 14% elastane
1 zippered chest
Claimed Weight
Recommended Use
sport climbing, trad climbing
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 5

Favorite Windbreaker

I've used it once or twice and have initial impressions
True to size
Size Bought
5` 2"
110 lbs

This jacket is super light and minimal! I love the ease of just throwing this on when the hike gets too breezy and I just want an extra light layer to keep goosebumps at bay. This jacket is true to size, though arcteryx tends to be a slimmer fit so I went with a small rather than XS for extra comfort. Though I wouldn't rely on this jacket in the rain, I've found it to be the perfect layer to keep in my day pack for days I know it won't pour!

>Rating: 5

Summer Alpine/Multi Pitch Essential

I've used it once or twice and have initial impressions
True to size
Size Bought
5` 7"
138 lbs

Over several seasons of climbing and hiking in the Wasatch, I have been caught in a variety of "unexpected" weather conditions. I've been on a lookout for a pullover that I can pull on if the weather turns really windy or starts raining. Finally, Arcteryx has made a jacket that is exactly what I've been looking for! I've only worn it a few times, but I literally bring this with me everywhere now. This pullover definitely seems more breathable than my other rain jackets, but I still warm up pretty quickly when I am moving while wearing this. I haven't tested it out in rain yet. I wouldn't want to rely on this during a heavy downpour, but I am fully confident I would stay dry during a drizzle. It cuts the wind when you put it on. Additionally, it is super stretchy, and it doesn't limit my mobility at all when rock climbing. Arcteryx has added in things in the bottom hem so that it stays put under your harness. This jacket fits true to size, and fits similarly to other Arcteryx clothing. I always find Arcteryx Women's jackets to run on the shorter side, and this jacket is no exception. If it was any shorter, then I would go with the Men's version (size down 1 size), as Men's tend to run longer. Or you could size up in the women's, but it definitely will not fit as slim. I have this in the Iolite color, and it is beautiful. Even though it is expensive, I would highly recommend! This is a piece that will definitely last you a long time.