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Men's Ferrosi Convertible Pants


The best 2-for-1 style in your gear closet.
FIT: Standard fit
COLOR fatigue
SIZE: 36
Infinite Guarantee
Outdoor Research Athlete Ambassadors and employees invariably turn to the soft shell Ferrosi Shorts and Pants when the weather turns warmer. That’s why we created the stretchy, breathable Ferrosi Convertible Pants. These two-in-one bottoms feature zip-off lower legs, making them ideal for hiking and backpacking; they’re never too hot but always block shiver-inducing wind and light rain on the trail.
Fabric :
86% nylon
14% spandex 90D stretch woven ripstop
Inseam :
Weight :
12.6oz / 356g Avg Weight for size 34
Fabric Performance :
DWR Treated
Movement-Mirroring Stretch
UPF 50+ Sun Protection
Design Features :
Button and Zipper Fly
Front Jean-Style Pockets
Bellows Zip Thigh Pocket
Back Pockets
Brushed Tricot-Lined Waistband
Functional Details :
Zip-Off Legs
Straight Leg
Belt Loops
Gusseted Crotch


Nice pants but not 32" inseam


Except for the legs the pants fit pretty well. Almost seems like someone zipped long bottoms on to the shorts part. Measured at 33.5" with a tape measure.

Irmo, SC

Great fit and feel pockets could have more stretch


Awesome pants the hand pocket are very tight though. 5'6 150 with 32in waist line order 30R and fit perfect.



Nice Pants


Great quality, nice feel, great to wear "regimental" my only issue is I guess I have stubby legs, they fit a little long.

Calgary, canada

Great pants, way too long


Very nice pant, and like all the Ferrosi stuff, very versatlie. Caution on fit: I'm a 32 inseam in most pants but these pants advertised as 32 were waaaaay too long in the inseam. Not a problem with legs zipped off, of course. But I had to return. Be warned.

Bellingham, WA


Comfy, but the nice look unravels quickly


It's been a love-hate relationship with these. HATE: First, I thought: "why do they have to be so stretchy? They feel kind of baggy". LOVE: But then I had them hiking and climbing and the stretch made for a lot of comfort. HATE: After just a couple months of babying them through the wash cycles, I've already noticed quite a bit of pilling LOVE: Standing back a bit and looking beyond the pilling, the pants still look great.

Edmonton, Alberta


Great Pants


Love these pants. Wear them for just about anything outdoor related.

Seattle, WA


Great pants, not durable


Beautifully designed pants. Great fit, fantastic zippers, ultralight and has a bit of stretch. Unfortunately after less than a month of use the seams on BOTH sides of the pants began to unravel. Though these pants are great, they do not hold up well to use in the mountains. Another small gripe is that the pockets dip in the middle meaning that a knife will slide to the middle and make it difficult to keep your hands in the pockets or put other stuff in pockets


Great pants/shorts


Great item for someone (me) who can't decide on Ferrosi shorts or pants. You get both! Got these for an upcoming trip to Denver; love them so far, wore them for indoor climbing after receiving and they performed great. Lightweight, breathable, and roomy enough to move freely, definitely not a slim fitting pant. The only negative I've found is that when wearing them as pants, I am aware of the zipper attachment at the knee and can feel the weight of the zipper banging against my legs, not terrible but a distraction. The legs attach and detach easily, though one might have trouble slipping the leg sleeves over a heavy boot. I got my usual size (32) and while they fit they are a loose 32, but I fear a 30 would have been too small...definitely wearable though, just more of a baggy look. All in all - very happy, they are comfortable and will be great for packing light, one item gets you both a pant and a short. Love the versatility.

Huntington Beach, CA


These pants are pants


Great pants, perfect for hiking and exploring! Everything I wanted in a pair of zip-offs, except for a side zipper on the bottom of the pants for making it easier to get over shoes. No big deal though, everything else fits and looks great.



Great pants for backpacking/hiking/camping/daily use


I love these pants. They are very durable, very lightweight, and somewhat water resistant. Even when they do get wet, they dry very quickly. I've used them kayaking, backpacking and hiking. They are comfortable look good too.

Sacramento, CA



3.9 13






Size & fit guide

Men’s apparel - sportswear bottoms

Measurement shown in:
  28 30 32 34 36 38
WAIST 28”71 30”76 32”81 34”86 36”91 38”97
HIPS 35”89 37”94 39”99 41”104 43”109 45”114
INSEAM/ SHORT 28”71 29”74 30”76 30”76 31”79 32”81  
INSEAM/ REG 30”76 31”79 32”81 32”81 33”84 34”86
INSEAM/ LONG __ __ 34”86 34”86 35”89 __
*All sizing is based on your body measurement.
We adjust the garment for intended fit and intended use.