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Beta AR Pant


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Beta AR Pant Women's Versatile women’s GORE-TEX® Pro pant offering hardwearing waterproof breathable protection with minimal weight and bulk. Beta Series: All-round mountain apparel | AR: All-Round.

Versatile women’s GORE-TEX® Pro pant offering hardwearing waterproof breathable protection with minimal weight and bulk. Beta Series: All-round mountain apparel | AR: All-Round.

Winter Iris
7 Detail Photo(s), 2 Video(s)
XS, S, M, L, XL
Regular, Tall
515 g / 1 lb 2.2 oz
Athletic Fit, with e3D patterning
Sizing Chart: 
Gender Equivalent Product:


Made from two different GORE-TEX® Pro textiles, the Beta AR Pant is thoughtfully designed and crafted to balance complete weather protection, light weight, packability and protection from wear and abrasion. The pant is made from N40r-X GORE-TEX® Pro fabric, a lightweight ripstop that delivers waterproof protection, a high level of breathability and surprising durability for its weight. The seat, knees and lower leg are reinforced with burly, abrasion resistant N80p-X GORE-TEX® Pro for added protection in these higher impact areas.


Purposeful design is an Arc’teryx commitment. When designing for women, each element is refined to specifically to meet the needs and demands of the female athlete, without compromise. In the Beta AR pant, an Athletic fit with e3D patterning was chosen to allow full freedom of movement, including layering over maximum winter layers. Articulation at the knees and the gusseted crotch combine to further extend comfort and range of motion.


Streamlined design is a process where the acute awareness of user intention focuses the balance between simplicity, weight and performance. A lace hook secures the cuff to the boot to prevent the pant from riding up, three-quarter length side zips open up for easy removal over boots, and the waist adjusts with a webbing belt for a secure fit. Rugged Keprotec™ instep patches protect from ski edge and crampon cuts, and the Cordura® PowderCuff™ helps protect the pant and seal out snow.

Learn More About This Product

Arc'teryx Fit Guide - e3D

Ergonomic 3-Dimensional (e3D) patterning brings an additional level of articulation to provide enhanced range-of-motion in our Trim, Athletic, and Expedition fit categories. The application of e3D patterning allows for enhanced mobility for sport-specific activities in challenging environments.

Arc'teryx Fit Guide - Athletic Fit

Standing in as our “Arc’teryx Standard” fit, the complex patterns used utilize anatomical shaping and gussets to enhance motion and eliminate excess bulk. Trimmer than the Relaxed fit with room for a base layer, a light fleece mid-layer and a synthetic or down filled mid-layer.

To find out how to calculate your body measurements, view our Sizing Charts:

Men's Tops | Men's Bottoms
Women's Tops | Women's Bottoms


All around mountain use garments: moderate length; hand pockets; interior pockets; moderate articulation; room for layers; helmet compatible hoods; drop hem.

AR | All Around

Provides high performance & weather protection and highlights a range of features to give All Around versatility in multiple activities.

Full Feature List

Technical Features
  • Waterproof
  • Breathable
  • Lightweight
  • Durable
  • Micro-seam allowance (1.6 mm) reduces bulk and weight
  • GORE-TEX® three-layer construction
  • Tiny GORE® seam tape (13 mm)
  • Arc'teryx Nu water repellent treatment
  • Articulated knees and seat
  • e3D Ergonomic 3-Dimensional patterning for enhanced comfort and mobility
  • Gusseted crotch
  • Athletic fit ensures optimal ventilation with comfort and mobility
Zippers & Fly Configuration
  • WaterTight™ external zippers
  • Molded zipper garages
  • Side zippers stop below harness/ hipbelt area
  • WaterTight™ 3/4 length leg zippers
  • Front fly with snap closure
Cuff & Sleeves Configuration
  • Adjustable pant cuff drawcord
Waist & Belt Configuration
  • Adjustable webbing belt
Pocket Configuration
  • Hip stash pocket
  • Note: Our WaterTight™ zippers are highly water resistant, but not waterproof. We do not recommend keeping items in your pockets that may be damaged by moisture
  • Keprotec™ instep patches provide superior protection against damage by boots, crampons and ski edges
  • Reinforced knees, seat and lower legs
Snowsport Features
  • Powdercuff™, with elastic and lace hook, keeps snow out


  • N80p-X GORE-TEX® Pro 3L
  • N40r-X GORE-TEX® Pro 3L
  • Keprotec™


  • Machine wash in warm water (30°C).
  • Double rinse.
  • Wash dark colours separately.
  • Do not use fabric softener.
  • Remove from washer immediately.
  • Do not leave wet.
  • Tumble dry on medium heat.
  • Do not iron.
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