How to Choose Hiking Pants
Arc'teryx Gamma MX Straight Leg Pants - Women's
$300.00
Members get an est. $30.00 in rewards
Pull on these Arc'teryx pants for ski tours and winter hikes. They're weather-resistant, stretchy and breathable. And their Fortius™ 2.0 soft-shell fabric is warm and durable.
Key Details
Pants Rise
High
Weight
14.8 ounces
- Updated with a PFAS-free FC0 durable water repellent (DRW) treatment to repel moisture
- Hardwearing Fortius™ 2.0 soft-shell fabric has increased warmth-to-weight ratio and durability with wind resistance and a DWR finish
- Breathable, durable and wind-resistant
- Regular fit provides freedom of movement
- Articulated patterning works with the material's stretch for exceptional freedom of movement
- High-rise waist with a straight leg for a streamlined profile
- Adjustable waistbelt with brushed lining for soft comfort and a secure fit
- 2 hand pockets with zippers; large-volume zippered thigh pockets
- Pockets are accessible and secure
- PFAS (per- and polyfluoroalkyl substances) compliant
- Contains materials that meet the bluesign® criteria
- Shell: bluesign®-approved material; lining: bluesign®-approved material, recycled content
Imported.
Inseam by size:
0: 30.5 in.
2: 30.5 in.
4: 31 in.
6: 31 in.
8: 31 in.
10: 31.5 in.
12: 31.5 in.
14: 31.5 in.
16: 32 in.
View the Arc'teryx Gamma Product LineView all Arc'teryx Women's Hiking Pants0: 30.5 in.
2: 30.5 in.
4: 31 in.
6: 31 in.
8: 31 in.
10: 31.5 in.
12: 31.5 in.
14: 31.5 in.
16: 32 in.
| Best Use | Hiking |
|---|---|
| Fabric | 60-denier synthetic stretch soft-shell nylon plain weave face, poly fleece backer, 233 g/m², DWR FC0; 84% nylon/16% elastane |
| Lining Fabric | 100% polyester |
| Pants Rise | High |
| Pant Fit | Standard |
| Pant Leg Style | Straight |
| Inseam (in.) | 31 inches |
| Gender | Women's |
| Weight | 14.8 ounces |
| Sustainability | Fair Trade Certified™ Factory Contains recycled materials Contains materials that meet the bluesign® criteria |
Arc'teryx Clothing - Women's
| XXS | XS | S | M | L | XL | XXL | XS Short | S Short | M Short | L Short | XS Tall | S Tall | M Tall | L Tall | XL Tall | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 00 Short | 0 Short | 2 Short | 4 Short | 6 Short | 8 Short | 10 Short | 12 Short | 14 Short | 2 Tall | 4 Tall | 6 Tall | 8 Tall | 10 Tall | 12 Tall | 14 Tall | 16 Tall | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Numerical Size | 00 | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | 00 | 0-2 | 4-6 | 8-10 | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | |
| Chest | 30 | 32 | 34 | 36 | 39 | 43 | 47 | ||||||||||||||||||||||||||||||||||||
| Sleeve Length | 28.5 | 29.5 | 30.5 | 31.5 | 32 | 32.5 | 33.5 | ||||||||||||||||||||||||||||||||||||
| Waist | 23.5 | 25.5 | 27.5 | 29.5 | 32.5 | 36.5 | 40.5 | 27 | 28.5 | 30.5 | 34 | 27 | 28.5 | 30.5 | 34 | 38 | 24 | 25 | 26.5 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 37 | 24 | 25 | 26.6 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 26.6 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 37 |
| Hip | 33 | 35 | 37 | 39 | 42 | 46 | 50 | 36 | 38 | 40 | 43.5 | 36 | 38 | 40 | 43.5 | 47 | 33.5 | 34.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 46.5 | 33.5 | 34.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 46.5 |
| Inseam | 30.5 | 31 | 31 | 31 | 31.5 | 32 | 32 | 28.5 | 29 | 29 | 29.5 | 33.5 | 34 | 34 | 34.5 | 35 | 30.5 | 30.5 | 30.5 | 31 | 31 | 31 | 31.5 | 31.5 | 31.5 | 32 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated.
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Robyn13
Great Durability - Lacking Features
4 months ago
First trip with these pants was for a ski mountaineering trip that involved a lot of bushwhacking! Like 8 hours of thick bushwhacking, with crawling on the ground under logs. There was not a mark on the pants, held up great. They were also fairly waterproof in the snow sections. I tried the regular gamma pant on in store to find my size then went online to order the longs, and was excited to see they had a straight leg version. I found the regular a little tight in the thighs. These fit much bigger than the Gamma pants and probably should have sized down. But the mobility with the extra thigh space is fabulous. The adjustable waist clip unfortunately sits under the waist belt, which caused a hot spot. These pants also don’t have a lace hook, unlike the regular gamma pants which was disappointing. Especially because it is a wide bottom, would have been nice to keep some of the debris out. Would have also appreciated a drawcord at the bottom and islets to attach cord around the bottom of the boot. Speaking of nice to haves, would love zipper thigh vents too, they were warm at lower elevations, but perfect weight in the alpine. It’s disappointing to pay so much for a technical pant and not have all the add ons that other brands have. Still gets three stars for the durability and thigh space.
Yes , I recommend this product
Originally posted on arcteryx.com
Response from arcteryx.com
Arc'teryx Guest Services
4 months ago
Hi Robyn. Thanks for sharing this detailed review of the Gamma MX Straight Leg Pant. We’re glad to hear they held up so well through tough terrain—durability and mobility are at the core of this design. That said, your feedback on missing technical features like a lace hook, hem drawcord, and ventilation is incredibly valuable. These details can make a big difference on demanding missions, and we’ve passed your comments to the design team for consideration in future iterations. We appreciate you taking the time to highlight both the strengths and the areas for improvement.
EvyD
Excellent quality
10 months ago
When riding my mobility scooter in the fall/winter, I get cold very easily so I decided to purchase these pants for an extra layer of warmth. They are warm enough when wearing leggings underneath but I don’t think they will be warm enough below -1C for someone who cannot walk. They are true to size. They are a perfect fit at the waist (I usually wear a size 27 in jeans) with enough room everywhere else to wear them over a pair of leggings. They are the perfect length in the short style for my height at 157cm. The reason for the 4 stars is the snap closure will unsnap sometimes when bent over. A button closure would be better.
Yes , I recommend this product
Originally posted on arcteryx.com
lia1203
Boston, MA
Disappointed
1 year ago
I really wanted to love them. I had an earlier version from 2018, the fit and material were much nicer. Of the old version, the material looks and feels high end, well worth the money. The legs are truly straight with cinch-able hems. They look really stylish with either hiking boots or casual boots. The legs of this new version, although described as straight leg , are actually slightly tapered , which make them look odd with hiking boots. Also, with a much higher price , the material of this new version feels very plastic and cheap, not nearly as warm as the older version. Very disappointed.
No, I do not recommend this product
Originally posted on arcteryx.com
Response from arcteryx.com
Customer Service
1 year ago
Hello there, thank you for sharing your thoughts on the Gamma MX Straight Leg Pant. We're sorry to hear that the new version didn't meet your expectations, especially after having enjoyed the previous model. We understand that the fit and feel of a product are key to its overall performance and value. Our design team is always looking to improve our products, and insights like yours help us understand where we may need to refine. We’ll pass your comments along.
Dani
Squamish
the only pants I ever wear
9 months ago
So comfortable and with a flattering fit, I only wear other pants when I have to. Stretchy, breathable and with pockets that actually fit all the snacks a little heart could dream of. Great for travel, hiking, or casual nights out with friends who won't judge you for wearing the same thing everyday.
Yes , I recommend this product
Originally posted on arcteryx.com
Dyna
Great winter hiking pants
1 year ago
I bought these for cool weather backcountry camping and hiking and I love them - they look good, fit great, leave room for wearing a base layer underneath, and are comfy and warmer than my summer hiking pants. The one bummer is the snaps which pop open almost every time I bend over to tie my shoe, get something out of my tent, etc, yet somehow are also hard to do up. A button might not look quite as clean but would be more practical. The sizing is fairly generous - I think my measurements are closer to an 8 but a 6 fits me better.
Yes , I recommend this product
Originally posted on arcteryx.com
Emma
Vancouver
True to size, but shorter than expected
10 months ago
The 4-S fit me perfectly in the waist/hips, but was surprisingly shorter than expected - along with the tapered leg made me my legs look even shorter. I usually go for the short length if that’s an option, but the inseam on these pants was just barely 27 inches when I measured it, not 29 like it’s listed. A little disappointing, but now I know I can probably just go for the regular length.
No, I do not recommend this product
Originally posted on arcteryx.com
HollyAnne
Colchester, ON
Awesome Pants
1 year ago
Love these pants. The warmth is perfect, and they are awesome for outdoor climbing and hikes once the weather gets a little chilly. Length is awesome and I love that the waist is adjustable. I personally love the straight leg, and am impatiently waiting for more pants like these!
Yes , I recommend this product
Originally posted on arcteryx.com
Alexe
Vancouver
Straight leg fit for the win!
1 year ago
Wow love these! Super cozy warm, perfect amount of stretch and LOVE the straight leg fit. You should make these in a lightweight version as well - love the straight leg more than all the other gamma pants!
Yes , I recommend this product
Originally posted on arcteryx.com
Bobby27
Looks amazing and keeps you warm!
11 months ago
Perfect pants for dog walking in the winter months! The insulation keeps your legs warm, while the straight leg keeps you looking stylish. Bought them in both colours and can’t recommend them enough!
Yes , I recommend this product
Originally posted on arcteryx.com
Lee2
Great pant, annoying button
8 months ago
Great and warm pants. However, the button easily opens when bent over or taking a high step. This is especially annoying when hiking. Would expect better quality on the button considering the price.
Yes , I recommend this product
Originally posted on arcteryx.com
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