Arcteryx Men's Alpha Comp Pant

Arcteryx Men's Alpha Comp Pant

Arcteryx Men's Alpha Comp Pant is rated 4.6 out of 5 by 5.
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4.6 Star Rating
$242.99   $325.00
25% off

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Product Description Item No.   10281139

The Arc'Teryx Men's Alpha Comp Pant is a stretch pant with waterproof/breathable protection in specific portions for ice and alpine climbing. Moving fast generates plenty of heat and when you're facing an environment that is often wet, problems arise. In comes the Alpha Comp, where Fortius 1.0™ fabric gives you the stretch, breathability and durability you need while N40p 3L laminated GORE® fabric at the seat, leg fronts, and lower leg cuffs provides the waterproof protection needed to stay dry. A durable water repellent finish throughout repels water from the surface, preventing soaking. The integrated belt keeps the pant at your waist and the zippered thigh pocket won't interfere with your harness. Unzip the lower leg cuff to reveal a gusset, allowing the pant to fit over larger boots, or close against smaller ones.

Products on Sale are Discontinued Styles or Colors.

FEATURES of the Arcteryx Men's Alpha Comp Pant

  • Composite Mapping specifically places fabrics for optimized performance
  • N150p-X 3L Gore Fabric Technology with tricot delivers zonal waterproof / breathable protection
  • Fortius 1.0 softshell provides stretch, enables air flow for thermal regulation
  • Trim fit with e3D Patterning provides freedom of movement with minimized bulk
  • Low profile metal hook waistbelt
  • Harness compatible, easy access zippered thigh pocket with flap
  • Two position lower leg gusset: Closed for crampon use or fully open for ski touring boots
  • Abrasion resistant Keprotec instep patch
  • Reinforcements in the seat, leg fronts and lower leg cuffs
  • Micro-seam allowance (1.6 mm) reduces bulk and weight
  • Taped seams for added weatherproofness
  • Ergonomic 3-Dimensional patterning for enhanced comfort and mobility
  • Adjustable pant cuff drawcord
  • Expanding gusset in the pant cuff adjusts to two volumes to accommodate various types of footwear
  • Adjustable integrated webbing belt
  • Thigh pocket sits just below a climbing harness

- + Product Specifications
Disclaimer: We only ship this brand to US Addresses.
Product Technology: GORE-TEX
Pant Rise: Mid
Waterproof: Yes
Weight: 14.8 oz
Features: Adjustable Cuffs, GORE-TEX, Waterproof, Adjustable Waist, Quick Drying
Gender: Mens
Best Use: Climbing, Ice and Mixed Climbing, Mountaineering and Alpine
Fit Type: Slim Fit
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 >

Rated 5 out of 5 by from Another solid product from Arc'teryx I should first say I've only used these pants once on a recent ice climb in the Catskill Mountains in New York State. I found them to be awesome--they are super-flexible and burly to easily handle a long day in the mountains. I probably scraped my Grivel crampons up against the calf area all day, and there is no evidence of my clumsy movements. The pants held up amazingly well. As the images show, the extended cuff should also allow me to use these pants on a day of alpine touring while wearing ski boots. They're not waterproof, so on a deep powder day, there are better options, but for packed snow, I think they'll probably do fine.
Date published: 2014-04-09
Rated 4 out of 5 by from Like these pants I first tried the Patagonia Mixed Guide pant in size 28, and though they fit in the waist, I found them too tight in the seat and thighs. They were sort of okay with the vents unzipped, but generally cramped my movement. Used, I couldn't return them, so I sent them off to someone who guided for me in Nepal, who happens to be one of the skinniest people I know. Then I tried these in size XS. The hardshell panels are more judiciously cut and placed. The softshell stretches nicely. I can move in these! They don't have all the bells and whistles of the Patagonia - fewer pockets, no vents or internal cuffs - but in this case less is more. I appreciate the more athletic fit - they work for a narrow waist with real glutes and thighs. And the waist belt is more functional - it doesn't loosen as the Patagonia did. Nice work.
Date published: 2015-01-08
Rated 5 out of 5 by from Epic pants I just came back from a week of skiing in Breckenridge, CO and the temperature was everything from 5F/-10C to 47F/8C, and a snow storm thrown in for good measure. The AC pants adapted flawlessly, even resisted the cold wind much better than anticipated. I was out with the kids so a lot of bending down, on the knees in the snow etc - good stretch and very comfortable. The cut is pretty athletic and slim, which is the way I like it, no need for extra material but enough that you can fit some layers under. The final bonus was the weight, or lack thereof I should say. Rolls down very well (the only part preventing the folding down to nothing is the instep protection) into the carry-on backpack - checked luggage is lost luggage, as we all know. I have an older pair of Gortex Arc'Teryx pants but the fit is way too generous as well as a pair of Patagonia ski-pants, but these new Alpha Comp pants blows them both away. Best pair of outdoor pants I've owned so far. Highly recommended.
Date published: 2014-04-23
Rated 4 out of 5 by from Serious freedom backountry garment I had the occasion to try them last weekend, I do not put the five stars because is based in just one very successful experience. I went under controlled weather forecast announcing at worst some snowflakes but quite windy for an alpine hike, intense uphill and downhill. Extreme lightness and packability, just combined with phase AR bottom did the right job, as often getting the legs into deep soft snow generating permanent falls. I am sure is a perfect partner for backcountry skiers Comfortable fit and design for active purposes, belt Arc'teryx adjustment system is great to secure the position Nice to have a big pocket with good protection I used boots and then tied previously the pant inner loops (front and back) to the front and back shoes loops plus tightened the cord avoiding the useof extra gaiters (i would prefer a strap than a corrd but is an opinion) Inner patches did their job with the crampons spikes. I am sure we will be regular partners! Top parts used: phase AR base layer, equivalent Fortrez hoody and Alpha comp jacket which I provide also a review.
Date published: 2014-03-05
Rated 5 out of 5 by from A great pant to fill the niche between hard and soft shell winter pants. The Alpha Comp pant has quickly found a place in my skiing wardrobe, and proven itself as a reliable pice of kit -- one I'd highly recommend. Fit. As a muscular athlete, I worried somewhat about the trim fit, but my fears were quickly allayed. Even with the trim fit, the overall fit is outstanding. The e3D mapping seems to work out well, maintaining a trim appearance and avoiding any loose fabric, but never restricting movement. One note is in order, though, about the seat. On first trying the pants on, I was concerned (ok, actually my wife remarked) about the baggy seat; the reason becomes obvious when you move, however, and the pants allow you to contort athletically without binding in the crotch and seat. Form clearly wins over fashion, in this case. Fabric. The hybrid or composite construction is positive. The Fortius softshell offers exceptional breathability, the carefully placed Gore panels offer balanced weather protection, and the instep panel completes the package with good protection from ski edges and crampons. I've noted other reviewers who found the softshell material a bit light, but I've found it just about right for early winter adventures on the East Coast. Workmanship. Exactly what we've come to expect from Arc'teryx: impeccable, but even more notable in this case for the smooth melding of softshell and Gore waterproof-breathable fabric. Light Weight. A major selling point for me, the Alpha Comps come in at just under a pound, without sacrificing anything in the form or protection departments. One way is by deliberately going with less pockets and no vents, but I was conscious of that trade off and fine with it. Function. I've used them this far this winter as a lightweight skiing pant, and they've excelled in that role. Given the excellent mapping, the legs stay put without riding up at all, and the "open" leg fits easily over ski boots. Potential improvements. It would be nice to see some more color in future versions, even if only a black or nighthawk color. It might be nice to see a slightly heavier Fortius softshell fabric in future versions, though the current material has proven just about right so far. All in all, a great new addition to the winter Arc'teryx line -- one that fills a critical niche between full-on hard shell pants and just-not-enough softshells for winter pursuits.
Date published: 2014-12-24
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- + 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.

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