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The Top Picks Of The Season

Arc'teryxMotus AR Bottom - Men's

Arc'teryxMotus AR Bottom - Men's

Select a color:Anecdote Heather

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Size Chart


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Why We Like The Motus AR Bottom

For those of us with blazing fast legs that don't get scared at the sight of winter, we have the Motus AR Bottom. It acts as our first layer, stretching to the right fit and giving absolutely zero restriction to our strides. Built to keep up with our swift performance on blistering runs through snow-covered hills, the Motus has high-end thermal regulation that doesn't falter when hopping through patches of knee-deep powder. Match it with your favorite hardshell pant for an unstoppable performance on your next mid-January cross-country race.


  • A performance baselayer for fast-paced pursuits in cold weather
  • Moisture-wicking fabric breathes well while you run or hike
  • Articulated patterning moves naturally with your body
  • Gusseted crotch further enhances freedom and mobility
  • Merrow stitch construction produces smooth, low-profile seams
  • Item #ARCZ96U

Tech Specs

Phasic AR II (100% polyester)
1 zippered thigh
Claimed Weight
Manufacturer Warranty
limited lifetime
hiking, trail running

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