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Outdoor Research
Ferrosi Pant - Men's

4.426966292134831 out of 5 stars
178 Reviews
$49.48 - $98.95
Up to 50% off
Color:Dark Navy


Size Chart


Why We Like The Outdoor Research Ferrosi Pant

Sure, the Outdoor Research Ferrosi Pants aren't going to flash that route for you, but we believe they will make your day at the crag all the more comfortable. Ideal for hiking and climbing, these softshell pants sport a quick-drying, wind-and water-resistant ripstop construction that protects us from variable weather, with a design that features a comfortable stretch and articulated knees for free movement on the wall.


  • Durable softshell pant with free movement for hiking and climbing
  • Tough, stretchy ripstop fabric withstands abuse on rough rock
  • Wind and water resistance offer protection from changing weather
  • Movement-mirroring stretch and articulated knees enhance mobility
  • Zippered thigh pocket offers harness-compatible storage
  • Drawcord adjustable cuffs help seal out updrafts as you climb
  • Item #ODRZ8NY
90D stretch woven ripstop (40% nylon, 46% recycled nylon, 14% spandex), DWR-treated
2 hand, 1 thigh zip, 1 back zip, 1 back drop-in
internal drawcord, harness-compatible
Gusseted Crotch
UPF Rating
Claimed Weight
climbing, casual, hiking
Manufacturer Warranty

Overall Rating

4.5 based on 178 ratings

Review Summary

1 Stars - 5 reviews
2 Stars - 10 reviews
3 Stars - 14 reviews
4 Stars - 24 reviews
5 Stars - 125 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


Selecting an option will reload the available reviews on the page
4 out of 5 stars

May 26, 2024

Superb fitting pants, however….

I've used it once or twice and have initial impressions
Size Bought:
32w by 32L

Great pants, fit is excellent for me a slim guy 6’ and 155 lbs. However the size-length of 32 is actually about 1” shorter ;-(. Should have ordered a 34 length. Am having a tailor add an inch to length.

5 out of 5 stars

May 9, 2024

Great Hiking and Travel Pants

This is my second pair purchased for a 3-week trip to Tanzania and Zanzibar. They performed perfectly - Excellent fit, light, well designed.


Originally reviewed on

4 out of 5 stars

May 9, 2024

Great pants for righties

Comfy, ultralight fabric. The top-loading pockets take some getting used to, but not a big deal. The only annoying thing about the pants is they're not exactly lefty-friendly. There's only one thigh pocket and it's on the right side. Additionally, the only back pocket that can be secured is also on the right side. Not a deal breaker, but a little annoying for us southpaws!


Originally reviewed on

4 out of 5 stars

May 7, 2024

Great pants overall

These are a well fitting set of pants, very flexible. The material is prone to pilling, and they are not breathable in my opinion as compared to other hiking pants, but they are great for around town. If you sweat tho you will get wet

The Caretaker

Originally reviewed on

5 out of 5 stars

May 6, 2024

I would buy this product again

Fits perfectly, very comfortable, use for hicking and traveling.


Originally reviewed on

3 out of 5 stars

May 6, 2024

Back to Baggy

The fabric is still great, but they've gone back to the baggy leg style of long ago. Even the narrower leg that they had for a while was too baggy, and now that's gone. So these are still great for backpacking, but not for climbing or a smart leisure look.


Originally reviewed on

5 out of 5 stars

May 3, 2024

Alps hike

I'm hiking the Mont Blanc trail in early September and spent last 4 months looking for a great pant - and then I found these. Love the fit (I'm 6'4", 240lbs), the fabric, and the comfort. Now I just need to buy two more pair before my trip.

Scottish James

Originally reviewed on

5 out of 5 stars

April 29, 2024

My favorite pants

I've used it several times

I’ve bought two different pairs of ferrosi’s and I am already planning to buy more. They are so comfortable and are great for casual wear or hiking. High quality like most OR clothing.

4 out of 5 stars

April 27, 2024

Fantastic Pants

I've used it several times
Size Bought:

Used these on recent trip to Canyonlands NP. The light weight and breathability were great when sun was out and the SPF rating was helpful too. Importantly the stretchiness of the fabric made it easy to scramble up and down the canyons’ so called trails. Only issue could be durability on rough rock, but Just be careful.

3 out of 5 stars

April 27, 2024

Design issue.

I purchased these pants three weeks ago. First, I love the fabric. It is super light yet durable. In fact, my cat has clawed at me without any issue. They are very comfortable and articulated well. Pockets are great. Love leg pocket for my phone. Cons, the string tie belt is a bit weird and really does not work well. When not used, it is in the way. When used, it snugs up a little odd. They could do away with it. The biggest benefit and issue though is the cinch leg cuff. I love that you can cinch down the bottom cuff to be snug on your boot. This is so cool and keeps out ticks, etc. However, the mechanism that allows you to cinch the cuff can come off and did. The string does not go through it. So, after three weeks, the locking mechanism is gone and the cuff is floppy. I have reached out to OR but have not received a response. For $90, I would expect a better locking mechanism. Very disappointed but other than that, these pants do rock! I have in fact purchased another pair.

Thru hiker king