Patagonia  Causey Pike Pants - Men's

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Sizing chart
Runs Small
Runs Slightly Small
True to Size
Runs Slightly Large
Runs Large

Technical Trail Pants.

The men’s Causey Pike Pants are a durable trail trouser, designed for backpacking, trekking and hiking. They’re made of 95% nylon (with 67% recycled content) and have a touch of spandex for mobile 4-way stretch. Patagonia coated them with a moisture-shedding durable water-repellent finish, and they deliver UPF 50+ sun protection while out on the trail. The Causey Pike Pants have a slim-straight silhouette that sits on the waist, fits loosely contoured through the seat and thighs, and stays straight from knee to ankle. The zippered bottom cuffs have expandable gussets that fit over boots, and the clean waistband has a fully adjustable, integrated webbing belt for a personalized fit. Multiple pockets provide storage options, while a gusseted crotch and articulated knees allow for an improved range of motion.

  • Durable water-repellent finish
  • 50+ UPF sun protection
  • Slim-straight fit
  • Waistband with adjustable/integrated webbing belt
  • Side-leg pocket with security zip
  • Zippered bottom hem with expandable gusset
  • Finished fly
  • Gusseted crotch
  • Articulated knees



  • [body] 4.4-oz 95% nylon (67% recycled, 5% spandex with 4-way stretch
  • bluesign® approved fabric

Weather Resistance

  • Durable water-repellent finish
  • 50+ UPF sun protection


  • Slim-straight fit


  • Functional


  • Full-leg
  • Articulated knees
  • Straight-cut from knee to ankle


  • 318 g


  • 2 hand pockets, 2 rear pockets, 1 side leg bellowed pocket with security zips

Recommended Use

  • Trekking, Trail Hiking, Biking, Mountain Adventures, Backpacking

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