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Take off on the trail, track, or pavement with the SmartWool Men's Phd Run Short. The Phd helps regulate your body temperature and the built-in brief boosts coverage and support while you sprint up a steep hill or launch over downed trail debris.

  • Recycled polyester outer fabric dries quickly and moves moisture away from the body
  • An internal brief features merino wool, nylon, and elastane blend fabric for support, comfort, breathability, and thermo-regulation
  • Four-Degree Elite fit system on the fitted internal brief provides comfort and support while you run or hike
  • Seamless brief construction eliminates annoying chafing issues while knit ventilation in high heat zones help you ditch excess heat
  • 360° reflectivity logo helps make you visible in low-light conditions

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Review Summary
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SmartWool Phd Run Short - Men's

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Here's what others have to say...

Are the briefs built into these shorts or...

Posted on

Are the briefs built into these shorts or do they come separately? Thanks!

Best Answer Responded on

Lexi, you lied. Perry has a set of these and the liner is NOT removable...

Responded on

Ooops. Sorry Monique!
Listen to Dah-Rahhll, I was mistaken.
Smart Wool has misleading pictures....fools!

3 5

Liner too small

  • Familiarity: I've used it several times

the liner is too small/tight for the size

5 5

comfort kings

  • Familiarity: I've used it several times
  • Fit: True to size

I've own several different shorts, but this piece of gear is the best hands down. You just can't beat merino wool in the comfort department. They dry fast. Really fast. I've compared them to Gore Air GT AS Shorts and they beat Gore in every way.

just the perfect shorts for me

5 5


Just one use so far but I love these shorts. Nice and light and dry super-fast. And in true Marino wool fashion, no post-run crotch stink (surely I'm not the only one with that affliction?).