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Arc'teryx: The Ultimate Outdoor Gear

Arc'teryx Gamma Pant Women's

Size chart

Arc’teryx Size Chart

Use this guide to match your body measurements with Arc’teryx men’s and women’s sizing. Measurements are listed in centimetres.

Arc’teryx sizing is based on body measurements. Product fit may vary by style, activity, fabric, and layering system. If your measurements fall between sizes, choose the larger size for a looser fit or the smaller size for a tighter fit.

Men’s Arc’teryx Size Chart

Men’s Jacket and Shirt Sizing

Size Sleeve Chest Waist Hip
XXS 78 84 69 83
XS 81 89 74 88
S 83 94 79 93
M 86 102 86 100
L 89 109 94 108
XL 91 119 104 118
XXL 94 129 114 128
3XL 96 139 124 138
Men’s fit has been updated. Medium remains unchanged. Smaller sizes fit tighter and larger sizes fit looser.

Men’s Pants and Shorts, Alpha Sizing

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 69 83 78 73 86
XS 74 88 79 74 87
S 79 93 80 75 87
M 86 100 81 76 89
L 94 108 82 77 90
XL 104 118 83 78 91
XXL 114 128 83 78 91
XXXL 124 138 - - -

Men’s Pants and Shorts, Numerical Sizing

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
28 76 90 79 74 87
29 79 93 80 75 87
30 81 95 80 75 88
31 84 98 81 76 88
32 86 100 81 76 89
33 89 103 81 76 89
34 91 105 82 77 89
36 96 110 83 78 90
38 101 115 83 78 91

How to Measure, Men’s

Sleeve Measure from the centre back neck, across the shoulder, to the elbow, then down to the wrist.
Chest Measure under your arms around the fullest part of your chest.
Waist Measure around the narrowest part of your waist.
Hip and Inseam Measure around the widest part of your hips. For inseam, measure from the crotch down the inside leg to the floor.

Women’s Arc’teryx Size Chart

Women’s Jacket and Shirt Sizing

Size Sleeve Chest / Bust Waist Hip
XXS 72 76 60 84
XS 75 81 65 89
S 77 86 70 94
M 80 91 75 99
L 81 99 83 107
XL 83 109 93 117
XXL 85 119 103 127

Women’s Pants and Shorts, Alpha Sizing

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 60 84 78 73 85
XS 65 89 78 73 86
S 70 94 79 74 87
M 75 99 80 75 87
L 83 107 80 75 88
XL 93 117 81 76 89
XXL 103 127 81 76 89

Women’s Pants and Shorts, Numerical Sizing

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
00 61 85 78 73 85
0 64 88 78 73 86
2 67 91 79 74 86
4 70 94 79 74 87
6 73 97 79 74 87
8 76 100 80 75 87
10 79 103 80 75 88
12 84 108 81 76 88
14 89 113 81 76 89
16 94 118 81 76 89

How to Measure, Women’s

Sleeve Measure from the centre back neck, across the shoulder, to the elbow, then down to the wrist.
Chest / Bust Measure under your arms around the fullest part of your chest or bust.
Waist Measure around the narrowest part of your waist.
Hip and Inseam Measure around the widest part of your hips. For inseam, measure from the crotch down the inside leg to the floor.
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The Gamma Pant is the ultimate all-mountain softshell for climbers, hikers, and outdoor athletes who demand durability without compromise. Built from Fortius DW 2.0—a breathable, wind-resistant softshell with recycled nylon and a soft brushed interior—these pants deliver stretch, temperature regulation, and rugged performance across seasons. The low-profile waistband adjuster fits seamlessly under harnesses and hipbelts, while the drawstring cuff seals out debris. Secure, accessible pockets keep essentials within reach. Versatile enough for rock, ice, scrambling, and everyday adventure.

Gamma
Weather resistant mid or outer layers with stretch. Highly breathable and abrasion resistant.

Softshell
Air permeable four-way stretch woven textiles with superior abrasion resistance.

Fair Trade Certified™
Produced in a Fair Trade Certified facility. Building worker well-being into our product DNA.

Multi-use
Versatile high performance designs for diverse activities and conditions.

Technical features

Weather resistant

  • Breathable
  • Durable
  • Wind resistant
  • Versatile
  • Water repellent

Construction

  • Fortius™ DW 2.0 is durable, has good stretch and next-to-skin comfort

Cuff & Sleeves configuration

  • Drawstrings at cuffs seal out trail debris, preserve line-of-sight to feet while climbing

Design & Fit

  • Trim fit ensures better line of sight while climbing
  • Garment Inseam: Size 4-S (Short) is 28.5"/72.5cm, Size 4-R (Regular) is 30.5"/77.5cm, Size 4-T (Tall) is 34"/85cm — Inseam varies by size

Fabric treatment

  • FC0-DWR (Durable Water Repellent) finish repels moisture

Patterning

  • Articulated patterning for unrestricted mobility
  • Gusseted crotch for comfort and freedom of movement

Pocket configuration

  • Two hand pockets with zippers
  • Harness friendly zippered thigh pocket

Sustainability

  • Contains materials produced through processes that meet bluesign® criteria
  • Lining - bluepass Material
  • PFAS (Per- and polyfluoroalkyl substances) Compliant
  • Body - recycled content, FC0 DWR, bluepass Material

Waist & Belt configuration

  • Low-profile ladder lock waist adjuster with offset buckle for a secure fit and comfort under a harness

Materials

  • Body: Fortius DW 2.0 - Woven Double Weave, 186gsm - 88% Nylon, 12% Elastane
  • Origin of fabric: TAIWAN, CHINA
  • Origin of dyeing: TAIWAN, CHINA
  • Origin of Manufacture: BANGLADESH
  • May release plastic microfibres into the environment when washing

Care

  • Machine wash low
  • Tumble dry normal low
  • Do not bleach
  • Wash dark colours separately
  • Do not dry clean
  • Iron low
  • Do not use fabric softener
  • Double rinse

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