• Marmot - Arch Rock Pant - Men's - Slate Grey
    Marmot - Arch Rock Pant - Men's - Desert Khaki
    Marmot - Arch Rock Pant - Men's - Back
    Marmot - Arch Rock Pant - Men's - Back
  • Marmot - Arch Rock Pant - Men's - Slate Grey
  • Marmot - Arch Rock Pant - Men's - Desert Khaki
  • Marmot - Arch Rock Pant - Men's - Back
  • Marmot - Arch Rock Pant - Men's - Back
Marmot - Arch Rock Pant - Men'sView Larger Image

Marmot Arch Rock Pant - Men's

36% Off
from $44.97 $69.95

Item #MAR00F1

Select options
  • 28/Short
  • 28/Reg
  • 30/Short
  • 30/Reg
  • 30/Long
  • 32/Reg
  • 34/Short
  • 34/Reg
  • 34/Long
  • 36/Short
  • 36/Reg
  • 36/Long
  • 38/Short
  • 38/Reg
  • 38/Long
  • 40/Short
  • 40/Reg

Tech Specs

96% nylon, 6% elastane
2 front, 2 back, 1 side security zip
Gusseted Crotch:
UPF Rating:
Claimed Weight:
10.1 oz
Recommended Use:
Manufacturer Warranty:

Take on trail after trail.

As tough as the trail you’re trekking, the Men’s Marmot Arch Rock Pants will endure day after day of hiking and climbing. These pants are constructed with an abrasion-resistant nylon and DWR finish to withstand pesky snagging branches or rocky outcroppings while ensuring water-resistance for when you unexpectedly splash through a stream or get caught in a brief rain storm. When the rain clears up and the sun starts to scorch down, you’ll be safe and dry with built-in UPF 50 sun protection and a moisture-managing DriClime waistband. Hit the trail with great lunging strides enabled by a gusseted crotch and articulated knees, with your valuables securely stowed in the front, rear, or side zip pockets.

  • Mountain-ready pants designed for the trail and crag
  • Stretch fabric with gusseted inseam for on-trail mobility
  • DWR finish repels light moisture from dew and rain
  • DriClime interior waistband wicks moisture from sweat
  • UPF 50 rating protects from harmful UV rays
  • Relaxed fit with articulated knees ideal for hiking and climbing
  • Reviews
  • Q & A

Product image is deceiving or incorrect

  • Fit: Runs large
  • Size Bought: Large

I'm sure these pants have great quality, but the actual pants have much wider legs than the picture would suggest. I was really hoping for a nice slim fit, but these things felt like bell bottoms compared to most fits nowadays.

My new favorite pants!

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: 30/Short

I recently moved to Hawaii working in the construction industry. The average days run from 65F-85F with 70%+ humidity and can be quite uncomfortable in standard denim pants. I picked up a few pairs of these pants to give them a try based on aesthetics (office & field work), durability (have to withstand daily abuse), and comfort (SWASS!)

Aesthetically, these are some of the best looking synthetic pants on the market. They have a slender profile while also accommodating an athletic build (30" waist, 29" inseam, 22" thigh, 16" calf plus leather boot top). Other pants were either un-shaped cylinders or overly aggressive with cuts and colors. Speaking of colors, I bought 1 pr of khaki, 1 pr of black, and 2pr of grey. The khaki is great in my free time but didn't jive with my work-ware tops. The black was too black and I returned them since they looked like they would show too much dirt/staining. The greys are fantastic. Dirt and dust blends in but easily washes out. Aesthetically - 10/10.

Durability - I'm a pretty no frills kind of guy. The same pair of pants that I start my week with, I end my week with. That means the pants typically go 5 days in a row without washing. I also work around dirt, rock, concrete, grease, oil, and steel. There are lots of abrading surfaces as well as sharp metal that tends to snag, rip, or tear anything that drifts across it. So far, so good. Rain and drizzle bead right off. Oils have washed off without any pretreatment. These pants have been bulletproof without even a loose thread end so far! -10/10

Finally, comfort, the most important characteristic. What can I say? These pants rock! Pun intended and so, so deserved. The weak link in my functional wardrobe is no longer my pants. My back might be sweaty but my nether-regions are not! If I take my junk out of my pockets, I can even feel the A/C vents in my truck blow through some cross-ventilation.

Summary - I love these pants. If I can find (2) more pair of 30/short in grey, I would buy them in an instant. Based on wear and tear exhibited so far, I'm expecting my first (2) pair to last me at least a year wearing them 5 days/wk on alternating weeks.

Great Pant Too Big

  • Familiarity: I returned this product before using it
  • Fit: Runs large
  • Size Bought: 34

I picked these guys up to use for spring, summer, fall activities. Overall they are well designed and really comfortable. I also like how simple they are laid out. Unfortunately though I am typically in between a 32-34 waist size and neither the 32 or the 33 fit well. Compared to other Marmot pants I usually wear a 34 and these just seemed to run a bit large on me. Otherwise though these pants seem to be a great light/med weight pant for warmer weather adventuring.

Sweet pants brah

    Purchased these pants to do some climbing and so far the performance is top tier. I bought them for a friend, tried them on to see how they fit, and now they are mine. What they don't know can't hurt them.

    Decent Pants

    • Familiarity: I've used it several times
    • Fit: Runs large
    • Size Bought: Medium

    I got these pants a few months ago and have used them a few times at my local climbing gym. Very comfortable pants, and the stretch is a must. They are definitely not slim by any means, though. They are fairly baggy, despite what the pictures suggest. If that is okay with you, I do think that they are a good value for the price. All around still a quality pair of pants that I will continue to wear!

    Excellent Pants

    • Familiarity: I've used it several times
    • Fit: Runs large
    • Size Bought: 28 Regular

    I've only worn these a few times, so I can't speak to durability, but so far these are awesome. They're really light and offer excellent freedom of movement, which makes them perfect for climbing. I also paired them with long underwear and took them up an alpine winter hike in single digits with 60mph winds and they felt great. I don't think they advertise being wind-proof, but I was very comfortable spending hours above tree line in pretty gnarly conditions. One of my first acts in these pants was to spill some gatorade on my lap, and it rolled right off and left me dry. Throughout any activity, you can count on these to stay dry, which is crucial in a cold weather hike. The pockets have substantial capacity and the zip pocket was valuable when I wasn't wearing a jacket with pockets, but wanted to have a phone secured and within reach for pictures. To boot, they look good enough to wear to bar after a long day outside. They do run a touch big, so even though I tend to wear 29-30in waste in jeans, I ordered these in 28 and they fit great.

    Thanks for the awesome review! Stoked to hear you're getting out with them and having some awesome times!

    Excellent fit

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: 32 regular

    Have been looking for a good trail pant that could double for climbing or just kicking it around. These pants are definitely all three, for me. At 5’10” & 185 lbs, I have an... athletic... backside. I rarely find jeans or pants in the “trendier” fits, that work for me. Regular “dad” fit is my cross to bear. That said, neither Patagonia nor Craghoppers have worked for me. The craghopper was OK but only because of the highly elastic inner waistband, and we’re tight in the crotch and thighs which has less stretch. I couldn’t even get the Patagonias all the way up, which is a shame because they seemed, as is anything I purchase from patagonia, extremely high quality. These marmots probably do run a bit large in the waist and backside, as others have said, but that works very well for me. The back pockets are large, true, as others pointed out, but Again, I typically throw my license, credit card, and granola bar in the zip pocket and take off if I’m ever doing anything where I may be at risk of losing anything that would have been in my back pocket. Big fan of these so far.

    Solid Pants

    • Familiarity: I've used it once or twice and have initial impressions
    • Size Bought: 32

    These are the first pants I've bought from Marmot and I'm definitely not disappointed. They do run just a little bit large but not enough to make a huge difference. I ordered a 32, which is what I usually wear, and they still fit great. Light, breathable and stretchy. Great hiking or climbing pants.

    Good pants

    • Familiarity: I've used it several times
    • Size Bought: 32

    First climbing-related pants I've bought. Great quality. Hardly (if at all) notice them while climbing. Very light and breathable. They do run slightly large. Depending on the pants, I'm either a 32 or a 33. Have a 32, no need for a belt and they don't slide down ever. Would recommend.

    Cool pants, but NOT slim fitting

    • Familiarity: I returned this product before using it
    • Fit: Runs large
    • Size Bought: 32 regular

    Bought these b/c several reviews said they are slimmer fitting pants. I'm 6'2", 160lbs. These are really baggy. I'll stick with the prana stretch zions (still the greatest pants ever).

    Definitely runs large

      I’m normally a 30x30 and bought the 30/Reg. I measured the waist myself and it seems to be a 32in waist. See photo below.

      Very nice pants!

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Size Bought: 36W X 34 L

      My husband really liked these pants . The only reason he did not give it a five star is he wished it had more stretch to the material like some of the other hiking pants he have.

      Great pants

      • Familiarity: I've used it several times
      • Fit: Runs large
      • Size Bought: 36 Short

      I was very impressed with these pants. The Arch Rocks definitely run longer in length than most pants do so I had to size down from a large to a short. I've tested them out with bouldering and sport and they react well to the movements needed for both.

      Thanks for the feedback Dominic! Love how stretchy these are.

      Very nice pants

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: 36 Long

      I'm not a climber, but I have a job that requires a fair amount of unrestricted movement, sometimes at a moment's notice. So...the size was on the money. 36 Long was a generous 36 waist and 34 inseam. The fit was slightly looser than I expected, but not "relaxed." Maybe the most crossover-casual of my climbing pants. The Urban Jungle color was fine. I was afraid it might be gaudy or unnatural but far from it. I've worn them in 80 degree temps and they were comfortable. It does get to be 95 here so I have my doubts about that. I'm giving them 4 out of 5 for relative lack of stretch. They are nowhere nearly as elastic as Zions, Quandrys or Ferrosis. The gusset, knee darts and fit still made up for the slight rigidity. If stretch is not crucial to you, these stack up with any of them. They were a good addition to the stable, and I would add another pair, especially if they added a stone, taupe or very light khaki. As it is, I'm all full up in blue, grey, green and tan. A solid purchase.

      Good Fit - A Little Warm

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: 36/reg

      I'm shaped like a running back (minus the six pack and a few zeros on my bank account), so I was skeptical about the fit given the slim cut of the leg. Have to say I was pleasantly surprised. The stretch is minimal, but the articulation is excellent and I've had complete freedom of movement hiking and scrambling. I do wish there was a little more stretch in the waistband though. My biggest issue is that they are not quite as breathable as I'd like. I suppose that's because of the water resistance, which is excellent. But if it's above 80 with any amount of humidity, you're definitely in for a little extra sweat equity on your hike. The pockets are deep and the thigh pocket is very useful for holding my map. And I only use the rear pockets for a handkerchief and the occasional empty wrapper so the lack of closure hasn't been an issue for me.

      Not sure what these are for..

      • Fit: Runs large
      • Size Bought: 28

      First issue, they fit like skinny jeans. if you want the cuff of your pants to go over a pair of shoes, do not buy these. Second, the back pockets have no closure (velcro, zipper, button etc) so these don't give a sense of security for wallets etc. Third the stretch is almost non-existent. I am a 30 and had to order a 28 to get the right fit in my bottom. Not recommended. Craghoppers are infinitely superior.

      Love the pants

      • Familiarity: I gave it as a gift but have feedback to share

      Fit was perfect, love the fabric and style. This was a gift and my husband wants to wear them all the time.

      Didn't fit

      • Familiarity: I returned this product before using it
      • Fit: Runs large
      • Size Bought: 32

      I got these for my boyfriend for a climbing trip and he was really amped about how they looked like they would fit. He tries them o, though, once her gets them, and they are at least three sizes too big. He's usually a 32 and ordered a 32 and he could fit a whole other person in those pants with him. Huge. The fabric seems really nice, though, and the tapering in the knees is true to description.

      Pants - Shouldn't be Difficult. Fail.

      • Fit: True to size

      The good: fit is good, 36 short works for 36/30. They seem to have enough room for climbing. Other than that, basically a failure.
      Fabric: makes you feel hot and claustrophobic in a 75 degree room. A weird, clammy feeling. Maybe it's the extremely light fabric that clings to your skin. I have synthetic pants from Gramicci, Prana, and EMS. None of them are this awful. They're all 94- 97% Nylon and Spandex or some stretch fabric. Maybe it's just the light weight and lack of texture on the Marmot Arch pants that gives them the terrible feel. The fabric is extremely light yet feels hot, so there's no point to the light weight.

      Rear pockets are deep but loose and nothing secures the top so a wallet can easily fall out. Most makers address this with some sort of top closure. Is that so hard? Yes, let's rearrange our lives for these pants. Returned.

      Great for hiking and climbing

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Medium

      I love these pants. I have two pairs. They're super lightweight and durable for backpacking, and flexible enough for climbing. And they're nicely cut as well.


      Men's Apparel

      33 - 35in

      (84 - 89cm)

      36 - 38in

      (91 - 97cm)

      39 - 41in

      (99 - 104cm)

      42 - 44in

      (107 - 112cm)

      45 - 47in

      (114 - 119cm)

      48 - 50in

      (122 - 127cm)


























      27 - 29in

      (68.6 - 73.7cm)

      30 - 31in

      (76.2 - 78.7cm)

      32 - 33in

      (81.3 - 83.8cm)

      34 - 36in

      (86 - 91cm)

      37 - 39in

      (94 - 99cm)

      39 - 42in

      (99.14 - 106.7cm)


      34 - 35in

      (86.4 - 88.9cm)

      36 - 37in

      (91.4 - 94cm)

      38 - 39in

      (96.5 - 99.1cm)

      40 - 42in

      (101.6 - 106.7cm)

      43 - 45in

      (109.2 - 114.3cm)

      45 - 48in

      (114.3 - 121.9cm)














      How to Measure:
      For best results, take measurements over your underwear.
      Measure under your arms, around the fullest part of your chest.
      Measure around the thickest part of your neck, holding tape loosely.
      Measure from the center of your back to your wrist with arms held out.
      Measure around your natural waistline, keeping the tape a bit loose.
      Measure around the fullest part of your body at the top of your legs.
      Using pants that fit well, measure the crotch seam to the bottom of the leg.
      **Men's inseams with multiple lengths: Short 30in - Regular 32in - Long 34in