Arcteryx Men's Beta AR Pant
Blue Smoke

Arcteryx Men's Beta AR Pant

Arcteryx Men's Beta AR Pant is rated 4.8 out of 5 by 24.
  • y_2017, m_5, d_22, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_24
  • loc_en_US, sid_10281159, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_moosejaw
4.6 Star Rating
$358.99 - $475.00
up to 24% off

Select a Size Select a Color

When will I get my stuff?

"In Stock" means this item is ready to ship. Orders placed before 3pm EST using Ship Speeds of 1-5 Days will ship SAME DAY. Orders using 5-10 day shipping will ship within one business day.

"Ship Date" means we'll special-order the product for you and this is the date we expect your shipment to leave our warehouse.

"Oversized" means the item is too large for 5-10 Day Shipping and can only be shipped via 4-5 Day Shipping. Additional shipping charges may apply.

"Freight" means the item is too large for 5-10 Day Shipping and must be shipped by truck freight for an additional fee. Someone must be present to accept delivery so we will call to schedule.

If you have any questions, please Live Chat one of our sort of smart customer experience personnel. If you are one of the few that enjoy speaking to real human, please call 877-666-7352

Add to Cart
+ earn up to $47.50 in Rewards
Moosejaw Rewards: You earn MJ$10 for every $100 you spend on or at our shops (MJ$2.50 for discounted items).

So if you buy a $200 jacket at, you can turn around and get a $20 tee using your Rewards on

You are signed up automatically when you give your email address and you’ll earn points as you shop. So easy.

For full program info, see:
Rewards Program Details
Add to Wish List
- +
Product Description Item No.   10281159

The Arc'Teryx Men's Beta AR Pant is a waterproof pant for all around action in the mountains. Rain, mud, snow and more, the N80p-X and N40r-X GORE-TEX® Pro 3L fabrics play stellar defense against all the wet elements, and even the invisible wind that is so hard to stay away from. Staying dry keeps you comfortable and keeps you moving towards your goal, whether you're headed to the top of the mountain, back to the trailhead, or somewhere in between. The Arc'Teryx Nu water repellent treatment repels water from the fabric surface and taped seams increases waterproof protection. The pant has been specifically patterned for mobility and comfort in an athletic fit that not only looks good, but won't get caught on gear or the brush you just walked past. A hip pocket for stashing goodies, 3/4 length leg zips for easy on off, and Keprotec™ instep patches for protecting the pant against sharp edges, crampons and more.

Products on Sale are Discontinued Styles or Colors.

FEATURES of the Arcteryx Men's Beta AR Pant

  • Highly breathable Gore-Tex Pro; N40r-X face fabric, a lightweight ripstop face fabric that is tough and supple, is used on the front of legs, hardwearing N80p-X face fabric in high wear areas
  • 3/4 length WaterTight side zippers with back flaps ensure easy removal over boots and crampons
  • Adjustable webbing belt, zip fly with snap
  • Single zippered hip pocket
  • Keprotec instep patch protects against edges, crampons and boots
  • Cordura PowderCuff lace hooks affixes pant to boot
  • Micro-seam allowance (1.6 mm) reduces bulk and weight
  • Gore-Tex three-layer construction
  • Arcteryx Nu water repellent treatment
  • Articulated knees and gusseted crotch
  • Athletic fit for a slimmer more flattering profile
  • Athletic fit ensures optimal ventilation with comfort and mobility
  • Adjustable pant cuff drawcord
  • Keprotec instep patches provide superior protection against damage by boots, crampons and ski edges
  • Reinforced knees, seat and lower legs

- + Product Specifications
Disclaimer: We only ship this brand to US Addresses.
Waterproof: Yes
Weight: 18.5 oz
Pant Rise: Mid
Product Technology: GORE-TEX, GORE-TEX Pro
Features: Packable, GORE-TEX, Waterproof, Quick Drying
Gender: Mens
Best Use: Trekking, Ice and Mixed Climbing, Mountaineering and Alpine, Skiing, Snowboarding, Snowsports, Travel, Basecamp and Expedition, Winter Camping, Climbing, Casual, Driving, Hiking, Snowshoeing
Fit Type: Slim Fit
Pants Inseam: 33.5 in.
GORE-TEX fabric technology

Garments made with GORE-TEX® fabric are durably waterproof, windproof and highly breathable, providing reliable weather protection and maximum comfort for a wide range of activities. These garments keep your body dry by allowing perspiration vapor to escape so you remain cool during activity and warm during cool-down.

Check Out All GORE-TEX® Products >


GORE-TEX Pro material offers maximized ruggedness which makes it ideal for extreme and extended use, like mountaineering, climbing or skiing. It's super durable, super waterproof, and super windproof.

Rated 5 out of 5 by from A must have! Beside my Theta jacket, this is my best friend. It is a very well designed product and works perfectly. Been using it for 8 years now and I am very pleased with the product. The long zippers in the legs makes it easy to pull the pants on and off. They are breathing well and even is hot weather is it possible to wear them. The fit is very good and the inserts on the inside prevents wear and tear. Friends of mine using cheaper products are complaining about getting wet and cold due to their pants lack of breathing capabilities. The Beta AR pants are so good I often forget I am wearing them, I just dont want to take them off. Highly recommended! Tom
Date published: 2014-02-09
Rated 5 out of 5 by from Phenomenal pant, high performance, excellent fit Just took these on the Appalachian Trail in heavy rain and through tough brush. Water rolled off, never felt the brambles, and pants remained light with zero water absorption. Fits like it was made for me yet plenty of room for an under layer. Can confirm they're tough as nails and mud/water just stays away. Be warned however that they are the loudest pants I've ever worn, you won't wear these for casual activities. Also, lest I forget, they look as stylish as I've seen for a pant with these superior specs, materials, and workmanship. Attention to detail is bar none in my opinion.
Date published: 2011-10-01
Rated 4 out of 5 by from Absoloute Quality Item I have worn these from Glencoe to rock hopping around the North East Coast Line.Bought as an upgrade from the old Berghaus Paclite,and the difference is night and day,and you soon realise why the price is high as performance wise they are extremely tough yet surprisingly light and breath very well over a pair of 3 season pants in winter,they also seem to perform well in keeping the wind at bay.The only reason a 5* was not achieved was the overall fit,which is rather on the baggy side,even with a substantial pair of trousers under them.All in all do not think about purchasing these just buy them,like me you will not regret it and it soon becomes obvious why they are expensive.
Date published: 2013-01-20
Rated 5 out of 5 by from Used these on three trips this year I day hiked in intense rain, wind and 40 degree temps in the pants and was completely comfortable. Very solid feeling. Then I backpacked for 6 days in the Wind River Range and lived in them except for sleeping. Again, cold rain and 45 mph provided a good test - no problems. Finally, some hotter than expected days in the Himalayas this past week (mid-70's) and all I did was vent the legs about 8" with the side zips. I wouldn't want to wear them above 80 degrees, but other than that, I'd wear them any time. These are great pants. I've amortized the cost down to $20 per day already - the rest is gravy! Get a pair. Jeff
Date published: 2014-11-18
Rated 5 out of 5 by from OMG fantastic pants! At last a pair of over-trousers that really work and can take a bashing! I love the internal snow-gaitors in any sort of snow conditions, the full zips are long enough to assist putting on and off and as they stop just short of my hip belt so they don't irritate at all. Wow! the fly zip is long enough!! The only drawback is the zipped pockets are a little small to use with liner gloves and no chance with a more substantial glove.
Date published: 2011-12-22
Rated 5 out of 5 by from A true all rounder When I bought these I wanted one hardshell pant to rule them all, that is I wanted pants that worked for everything so I only needed to have one. And these are the ones. I've used them for everything from rain protection in the summer while kayak camping to skiing/snowboarding in the winter. But as the true all-rounder they are they don't excel at anything. And now that my beloved pants are starting to fall apart on me after intensive use I will get two different pants, one pair for winter use and one for summer. Simply since in the winter while skiing/snowboarding I miss the warmth and protection at the lower back you get from a bib, and in the summer I would like to have something a little softer to wear directly to skin and to not have to deal with the snow gaiter while getting them on/off with boots/shoes on. But if you only want one pair of hardshell pants to use for everything these AR the ones.
Date published: 2015-10-28
Rated 5 out of 5 by from Well designed and completely waterproof Broke in a pair of Beta AR pants with 4 weeks of trekking in the Peruvian Andes (during the rainy season). I really can't praise them enough. First of all, the full length zips on each leg are an amazing feature. Just as you'd expect, they let me quickly pull the pants over my boots when rain came on suddenly, and they let me ventilate effectively when wearing them over extended periods. Fellow trekkers (and guides) using other high-end brands had much more difficulty getting in and out of their pants on short notice, and several suffered small leaks along the length of their zippers, which was not an issue for me. Secondly, the base of each leg has been intelligently reinforced with abrasion-resistant fabric to protect the material from boot scuffs, rocks, and other damage you'd expect to get in rough environments. I couldn't believe how pristine they looked after the punishment I subjected them to. As with everything Arc'Teryx offers, the price is high, but the quality and performance are beyond question.
Date published: 2014-05-07
Rated 5 out of 5 by from Exceptional I'm not easily impressed but I am exceptionally impressed with the Beta AR pants. Extremely well-designed, rugged, and perfectly fitting. Two seasons of primarily on-piste snow skiing and have no doubt they'd excel brilliantly also at mountaineering or trekking. If I were off-piste skiing and/or backcountry in heavy powder I'd get bibs - otherwise these are exceptionally adequate for anything you can do in the snow or rain on or off any mountain. I'll probably have these for life and God willing will replace them if and when the time comes.
Date published: 2013-04-05
  • y_2017, m_5, d_22, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_24
  • loc_en_US, sid_10281159, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_moosejaw

What is the inseam for the large short and ex-large short.

Asked by: birds
Hey there, Thanks for the question. All of the sizes in the Short option of this pant have a 30" inseam, while the Regular has a 32" inseam. I hope this helps!
Answered by: Rocko Gigsby
Date published: 2017-04-10
  • y_2017, m_5, d_23, h_3CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_10281159, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_moosejaw
- + Size Guide

Men's Jackets, Shirts and Tops
SIZE X-Small Small Medium Large X-Large XX-Large
Chest 36" 38" 40" 43" 46" 50"
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Sleeve Length 32" 33" 34" 35" 36" 37"
Numeric Size 36 38 40 43 46 50

• Arc'teryx recommends you calculate your body measurements using the info in the Measurement Guide below before selecting a product size. The measurements provided in their size guides refer to your body measurements unless otherwise specified.

• Check the fit type in the product FEATURES and SPECIFICATIONS and refer to the Fit Guide below to ensure you are ordering a product for the correct end use.

Men's Pants
SIZE X-Small Small Medium Large X-Large XX-Large
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Length (Short) Subtract 2"
Length (Regular) 30 1/2" 31 1/8" 32 3/8"
Length (Long / Tall) Add 3"

• Please note that the actual pant length may vary slightly from the info above, depending on the intended end use of the product.

Men's Numeric Pant Sizing
SIZE 28 30 32 34 36 38
Waist 28" 30" 32" 34" 36" 38"
Hip 35" 37" 39" 41" 43" 45"
Inseam 32" 33" 34" 35"

• Several models of Arc'teryx pants are sized numerically and available in different inseam lengths. You will see these sizes reflected in the options in the Select a Size drop down menu for particular products.

• For all other pants available in numerical waist sizes where the inseam length is not specified, the inseam lengths provided above apply.

SIZE Small / Medium Large / X-Large
Head Circumference 21.7 - 22.4" 22.8 - 23.6"
Men's Gloves
SIZE X-Small Small Medium Large X-Large
Hand Width 7.6 - 7.9" 7.9 - 8.2" 8.2 - 8.6" 8.6 - 8.9" 8.9 - 9.3"
Hand Length 7 - 7.2" 7.2 - 7.5" 7.5 - 7.7" 7.7 - 8" 8 - 8.2"
Unisex Gloves
SIZE X-Small Small Medium Large X-Large
Hand Width 7.3 - 7.6" 7.8 - 8.1" 8.2 - 8.6" 8.6 - 8.9" 8.9 - 9.3"
Hand Length 7 - 7.2" 7.2 - 7.5" 7.5 - 7.7" 7.7 - 8" 8 - 8.2"


Chest / Bust - Measure around your chest / bust, holding the measuring tape under your armpit.

Waist - Measure around the natural waist, which is often the narrowest part of your waist.

Hip - Measure around your hips at the widest part.

Sleeve Length - With your arms in a slightly bent position, measure from the center of the back of your neck, along the length of your arm, to the wrist.

Inseam / Pant Length - From a standing position, measure from your crotch to your ankle.

Head Circumference - Measure the full circumference around the widest part of your head.

Hand Length - Measure from the tip of your middle finger to the base of the palm.

Hand Width - Measure the circumference of your hand around the knuckles, excluding the thumb.

• Please note that all the info provided above refers to body measurements, and NOT the dimensions of the garment.


Next to Skin Fit - These snugly-fitting garments are made with stretch fabrics to fit next to the skin to enhance moisture management and thermal efficiency. Garments in this fit category when constructed using Arc'teryx's heavier-weight AR and SV fabrics also perform very well as mid layer pieces, and users should consider selecting a larger size to accommodate a base layer underneath if the intention is to use this layering system as a mid layer option.

Trim Fit - Trim-fitted garments share the motion-friendly traits with Arc'teryx "Athletic" fit garments, but are patterned with lower volume for reduced bulk. These close-fitting pieces layer well under other garments.

Athletic Fit - This is the "Arc'teryx Standard" fit. These complete patterns utilize anatomical shaping and gussets to enhance motion by minimizing excess bulk. Easy layering under or over each item extends seasonal versatility and comfort.

Relaxed Fit - Relaxed fit garments rely on higher volume patterns and a reduced amount of articulation to offer roomy mobility.

Expedition Fit - Cut roomier than the Arc'teryx Athletic fit and suitable for winter/extreme conditions, Expedition (XPD) fit garments are cut larger to accommodate multiple layers without binding or restricting movement.

• You can find the fit type and additional fit info for Arc'teryx styles in the product description FEATURES and SPECIFICATIONS.

Free Shipping
Spend $12 in Moosejaw products OR at least $35
in other products and you orders ships FREE!

Moosejaw Rewards
You earn MJ$10 for every $100 you spend on or at our shops (MJ$2.50 for discounted items). That's like getting 10% back in Rewards!

What are you looking for?
Shopping Cart