Arc'Teryx - Men's Bottoms Sizing Chart
Alpha Sizing,
Your body measurements in inches:
| Size | Waist | Hip | Regular Inseam | Short Inseam | Tall Inseam |
| XXS | 28 | 331/2 | 311/2 | - | - |
| XS | 30 | 351/2 | 311/2 | 291/2 | 341/2 |
| S | 32 | 371/2 | 32 | 30 | 35 |
| M | 34 | 391/2 | 321/2 | 301/2 | 35 |
| L | 37 | 421/2 | 33 | 31 | 351/2 |
| XL | 40 | 451/2 | 33 | 311/2 | 36 |
| XXL | 44 | 491/2 | 33 | 311/2 | 36 |
Numerical Sizing,
Your body measurements in inches:
| Size | Waist | Hip | Regular Inseam | Short Inseam | Tall Inseam |
| 28 | 291/2 | 351/2 | 311/2 | 291/2 | 341/2 |
| 29 | 301/2 | 361/2 | 32 | 30 | 35 |
| 30 | 311/2 | 371/2 | 32 | 30 | 35 |
| 31 | 321/2 | 381/2 | 32 | 30 | 35 |
| 32 | 331/2 | 391/2 | 321/2 | 301/2 | 35 |
| 33 | 341/2 | 401/2 | 321/2 | 301/2 | 351/2 |
| 34 | 351/2 | 411/2 | 321/2 | 301/2 | 351/2 |
| 36 | 371/2 | 431/2 | 33 | 31 | 36 |
| 38 | 391/2 | 451/2 | 33 | 31 | 36 |
Note: If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.
Several models of Arc'teryx pants are sized numerically and may be available in different inseam lengths. Please refer to the specific product page to see which waist size and inseam lengths are available for your product.
How to find your measurements:
Note: Calculate your own body measurements, then select your product size.
1. Waist: Measure around your waist at the narrowest part.
2. Hip: Standing with feet hip width apart, measure around your hips at the widest part.
3. Inseam: From a standing position, measure from your crotch down the inside leg to the floor.
Beta
Versatile: high performance for diverse activities and conditions.
All Round
High performance weather protection and materials, emphasizing versatility for multiple activities.
Hiking and Trekking
For technical hiking, trekking, durable and protective designs for remote and varied conditions.
Gore-Tex
Waterproof, windproof and breathable textiles that offer fully protective environmental shelter.
Highly versatile GORE-TEX PRO pant delivering durable, breathable weather protection.
Beta Series: All round mountain apparel. | AR: All Round.
As you travel across wild terrain, conditions change. Wind and rain become sleet, then snow, then sleet again. The Beta AR Pant delivers waterproof, windproof, breathable protection for comfort across these changes. The GORE-TEX PRO with Most Rugged Technology – a next-gen material we developed in collaboration with Gore – delivers maximum durability. Articulated patterning adds freedom, WaterTight™ side zips provide drop-seat functionality, and a hidden RECCO® reflector improves searchability in emergency situations.
Updated with a revised fit.
Beta AR Pant (Men's)
Full Product Features
Technical Features
- Waterproof
- Breathable
- Lightweight
- Durable
Construction
- Tiny GORE seam tape (13 mm)
- Micro-seam allowance (1.6 mm) reduces bulk and weight
- N80d Most Rugged 3L GORE-TEX PRO maximizes comfort and durability
Cuff & Sleeves Configuration
- Adjustable pant cuff drawcord
Design & Fit
- Regular fit ensures optimal ventilation with comfort and mobility
Fabric Treatment
- Arc'teryx Nu water repellent treatment
Patterning
- Drop seat
- Articulated knees and seat
- Gusseted crotch for comfort and freedom of movement
Pocket Configuration
- 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
- Single zippered hip pocket, beacon loop
Reinforcements
- Keprotec instep patches provide superior protection against damage by boots, crampons and ski edges
Sustainability
- Dope dyed Ultra Black colourway
- Contains materials that meet the bluesign® criteria
Waist & Belt Configuration
- Adjustable webbing belt
- Suspender loops
Zippers & Fly Configuration
- WaterTight external zippers
- Molded zipper garages
- Zippered fly with snap
- Side zippers give rapid ventilation and easier on/off
Fit: Regular
Our classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably under our regular and relaxed fit shells.
Materials & Care
Materials
- Self: N80d Most Rugged 3L GORE-TEX PRO - bluesign Approved Material
- Keprotec
- 100D Cordura® PowderCuffs
Care
- Machine Wash Medium
- Tumble Dry Normal Medium
- Do Not Bleach
- Do Not Dry Clean
- Do Not Iron
- Wash Separately
- Do Not Use Fabric Softener
- Close All Zippers Before Wash
- Double Rinse
- Do Not Leave Wet
- Remove Immediately
