Outdoor Research Ferrosi Pants - Men's

$78.95 - $79.00
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Lightweight, rugged, and wind-resistant, the highly breathable soft shell fabric of the Outdoor Research Men's Ferrosi Pants™ offers ample stretch for smooth movement and tough abrasion-resistance against rough rock. Ideal for scrambling and climbing, they offer burly protection for dancing up tight chimneys or perfect splitter sandstone.


  • Abrasion and wind-resistant nylon/spandex stretch-woven ripstop; 89% nylon/11% spandex
  • Button and zipper fly
  • Two front slash pockets; two zippered back pockets
  • Zippered pocket on thigh
  • Low profile waist band for smooth fit under harness; free-hanging brushed tricot lining for comfort
  • Gussetted crotch
  • Articulated knees
  • Drawcord ankle hem adjustments
  • Air permeability rated at 9.0CFM
  • 32 " / 81 cm inseam (size 34)
  • Weight: 11.3oz, 320.355g

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Review Summary

4.8 out of 5

6 Reviews

  • Build quality: 6
  • Great design: 6
  • Performance: 5
  • Ease of use: 2

  • runs short in the inseam: 1
Quality: 5 / 5
Comfort: 4.8 / 5
Durability: 4.3 / 5
Fit: 3.3 / 5
Warmth: 2 / 5
Water Protection: 2 / 5

6 Ratings & Reviews

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
Warmth: 2 / 5
25-34 yrs

Men's Ferrosi Pants
September 23, 2012

Bought these pants while work in the Middle East and were thoroughly impressed with the quality of these pants. These are the most durable, comfortable, breathable pants I own. I enjoy these so much I bought a second pair in black and they are just as great.

Pros: Great design, Build quality, Lasts forever, Performance
Comfort: 5 / 5
Durability: 4 / 5
Quality: 5 / 5
FitClothes: 4 / 5
from Portland, OR
55-64 yrs

Exellent varied conditions travel pant
June 10, 2013

I bought this pant as a wind/rain resistance hiking pant that could also do double duty as a general purpose travel pant. These pants fit the bill. They are constructed of an extra-thin lightweight 4-way stretch softshell fabric that drapes well but breathes. I've found them to be nicely wind blocking and rain resistant, but amazingly quite cool and comfortable in hotter humid temperatures. They are also tailored quite nicely and look rather urban-stylish, a welcome change from the too-light crumpled messes that typical travel pants often become. These pants were originally designed as lightweight trekking pants, and the sewing details speak of the durability required for this purpose. I'm impressed. Considerations: pockets are internal (except the cargo pocket), but are sewn down - so don't pack the rear pocket too full. The front pockets are bucket topped - so things don't fall out when you're climbing - but not as easy to shove your hands into as slash pockets. The cargo pocket is side entry and positioned towards the rear, instead of a centered dropin like most cargos. Again, this is a better arrangement for climbing (or sitting on a plane), but not as easy to access when standing. Cut is relaxed athletic, with a low front rise and fairly high rear rise for easy harness or backpack use without interference. One of OR's most popular pants, and I can easily see why.

Pros: Great design, Build quality, Performance
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
WaterProtection: 2 / 5

35-44 yrs

Awesome Lightweight Softshell Pant!
April 10, 2012

These are my new go to hiking pants for cooler weather! The fit is relaxed but not too loose and they came in a long size that is hard to find an fits my 6'3" frame perfectly! For lightweight backpackers these would be plenty warm in the winter with a baselayer and yet cool enough for spring and fall adventures. Very durable and comfortable, a great all around pant!

Pros: Great design, Build quality, Performance
Comfort: 4 / 5
Durability: 4 / 5
Quality: 5 / 5
FitClothes: 3 / 5

from Los Angeles, CA.
45-54 yrs

Nice Hiking Pants
August 20, 2011

Greats Outdoor research pants, they really soft and comfortable. The only thing is they run very short in the inseam, about a inch. The waist fit is true-to-size. I wish they came in long. I Highly recommend Outdoor Research products they make great stuff!

Pros: Great design, Build quality, Lasts forever, Performance, Ease of use, Great value, Cons: runs short in the inseam
Comfort: 5 / 5
Durability: 4 / 5
Quality: 5 / 5
from Colorado Rockies
25-34 yrs

Best lightweight softshell pants
July 26, 2011

I'm a backpacker, climber, mountaineer, and backcountry skier in Colorado. I was looking for a pair of softshell pants that were comfortable for these activities in 3-season temperatures (spring, summer and fall). I've spent a good amount of time trying out 5 different pairs of softshell pants over the past year, and these were the best. Patagonia Simple Guides were way too long, and a little on the baggier side. Acme pants had too dark of a color (hot in the sun), too thick/warm for summer, and were too slim fitting. Gamma LT pants had too dark of a color and are very expensive. Stoic Microlith pants had no hand pockets - thought I'd be fine, but I was missing them very much! Marmot Scree pants were too thick/warm for summer, and the color was too dark. The Ferrosi pants are perfect. They fit well. They're made of thin enough material to be cool enough for summer use. They come in the lightest color gray of all the softshell pants I tried. They also have extremely useful cordlocks on the ankles that you can use to convert them into a pair of shorts by cinching off at the thigh (much faster and more convenient than zip-off convertables!). I also like that the hand pockets aren't zippered. Zippers on hand pockets doesn't make much sense. For outdoor adventures, they're there to quickly warm up your hands, not store stuff. I haven't had them long enough to vouch for durability, but they seem quite durable so far, based on a backcountry ski trip that required some 5th class scrambling, including a knee-bar! They're also very lightweight, coming in at 9.8oz, don't require a belt if you size the waist right, are extremely stretchy, and have enough room underneath for some long underwear for spring and fall endeavors.

Pros: Great design, Build quality, Performance, Great value
Comfort: 5 / 5
Durability: 4 / 5
Quality: 5 / 5
FitClothes: 3 / 5
Warmth: 2 / 5
WaterProtection: 2 / 5
from San Francisco, CA
25-34 yrs

Men's OR Ferrosi Pant
February 13, 2013

I purchased the Ferrosi pant for hiking and climbing in Nor Cal during the warmer months but find myself wearing them for everything from sailing to lounging around the house- these are just really comfortable pants. I have several other types of softshell pants, Marmot's Scree, Mountain Hardwear's Winter Wander and Yumalino, OR's Trailbreaker and Cirque but OR's Ferrosi is by far the most supple and lightest of the group. Although they're lightweight the Ferrosi material still offers some wind protection and are more water resistant than I thought they would be initially. Waist fit seems true to size if not a tad forgiving - I wear a 30-31" depending on the brand and my Ferrosi's are 30"s, sometimes I feel like I need a belts I when in doubt size down. Overall excellent pants of the typical OR quality.

Pros: Great design, Build quality, Performance, Ease of use

Also Available

Outdoor Research Men's Ferrosi Pants Photo

Black, Cairn, Mushroom and Pewter.

Available sizes, while supplies last, include size 30, size 32, size 34, size 36 and size 38: 30, 32, 34, 36, 38.

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