Code: WINTER20


Baselayer bottoms for adventure athletes.

When you’re venturing forth into terra incognita, make sure to slide your legs into the Arc’teryx Phase SV Bottoms and be prepared for Mother Nature’s worst. These insulating bottoms wick moisture away from your legs and help keep your body warm and dry. The Phasic SV fabric incorporates mechanical stretch weave so that the bottoms expand and contract with your muscles. The silver treatment helps repel fabric odors and the smooth outer face resists pilling.

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Arc'teryx Phase SV Bottom - Men's

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Here's what others have to say...

5 5

Great baselayer

  • Gender: Male
  • Familiarity: I've used it several times

Perform as typical arcteryx. Warm and breath very well. I am 6'1 200lbs somewhat athletic build. Bought the large as I planned on wearing this as a solo base or, for really cold, a second layer over very tight base pants that I already have. Fits me well except the waist is a little loose ( I have approx 34in waist).

Phase SV or AR? I live in New Mexico, and...

Phase SV or AR? I live in New Mexico, and will be using one in combination with the 2011-12 Stingray Pant, which is Gore-Tex Soft Shell. Believe it or not, it does get somewhat cold here, and we do have plenty of skiing/snowboarding. Any ideas? I'm also looking at which top to go with as well. I have the Alpha LT with the Atom LT (jacket instead of hoody this time) to layer with.

Responded on

I think you might be better served with patagonia's cap or smartwool. These are made of polypropylene partly which tends to get very stinky with a little sweating.

Whatever top you pick, don't get too many tops with a neck to them. Typically, you get a base layer, fleece (100 or 150 weight with your choice of windsheer, etc.) and a shell.

3 5

Very,very tight fit!

I am 5'10, 185 lbs and every single piece of Arcteryx i have is always "L" for tops and "M" for bottoms. That would include Rho AR, LT, Gamma LT and Stingray. However Phase SV in M is extremely tight and constrictive for me. Elastic waist band is only about 2/3" wide, won't stay in place ( constantly rolled up), there is no flat seems. Also this item is placed in heavyweight/SV category which in my opinion is no true, should be mid weight. I found fabric being warm on par with Rho LT and anti odor treatment works the way it should.
This is my first item from Arcteryx which in my opinion is not worth premium $. Also made in China...

Responded on has a great return policy when you order the wrong size...
I find the thermal value of my Phase SV is definitely heavyweight, but that's the beauty, the fabric isn't thick and heavy.

Responded on

After wearing it for ~ 30 times ( winter was long in Alberta), I will stick to my original review. Workmanship, quality and fit is not on par with RHO AR or LT.