Rab Men's Momentum Pants

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Embracing the fast and light approach, these slim-fitting pants are built to keep you moving on tough hikes and active mountain days.


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Designed without a gram of excess material, these multi-activity pants are super light, streamlined, and breathable, ideal for keeping cool on hot days in the mountains. They’re built for those who like to move fast, travel light, and cover more ground, with a comfortable slim fit making them an essential item on your thru-hiking kit list.

The Matrix™ fabric offers unbelievable stretch and flexibility for moving freely over challenging terrain, with a gusset at the crotch and great knee articulation giving you enhanced mobility. The pull-on design keeps weight and bulk to a minimum, and you can adjust the stretchy waistband using the drawcord closure, perfect for achieving the most comfortable fit on long days stomping the trail. Stash essentials in the two open hand pockets and zipped security pocket, with mesh pocket bags providing extra venting when the mercury rises.

Engineered with a stripped-back essential feature set and tapered cut, the Momentum Pants ensure you’re never carrying more than you need.

Material Facts

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Material Facts

Men's Momentum Pants

Total Recycled Content*  12%
Fabric  0%
Zips  36%
Trims  84%
Fluorocarbon Content 
Fabric  No
Zips  Yes
Trims No
Manufactured in Indonesia
*Calculations based upon the weight of a UK men's size medium.
QFV-82 Version 09/2023

The Specifics

  • Fit:Slim
  • Weight:238.5g/8.4oz (Size M)
  • Main Fabric:Matrix™ stretch single weave nylon (130gsm) with fluorocarbon-free DWR
  • Product Code:QFV-82
  • Pull on style pant for reduced weight and bulk
  • Lightweight elasticated waistband with drawcord and cleat closure
  • 2 open hand pockets with venting mesh pocket bags
  • 1 YKK® zipped rear pocket
  • Knee articulation for ease of movement
  • Long length gusset at crotch for increased mobility