Created for the dynamic demands of alpine travel, the Gamma MX Jacket is a proven performer. Made from our Fortius 2.0 fabric, it provides midweight insulation, resists wind and repels water, breathes, and delivers exceptional durability. Built to handle everything from ice climbing to fall hikes, its articulated patterning and stretch combine for freedom of movement, and the regular fit allows room for light layers.

What's been updated: Updated with a PFAS-free FC0 DWR (Durable Water Repellent) treatment and a roomier regular fit for expanded layering options.

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

Breathable Material
Allows moisture vapour to escape, helping regulate temperature and elevating comfort inside garment.

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

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

Mixed Weather
Highly durable, breathable and mobile. Best for mixed usage in changing weather conditions.

Features & Specs

Technical Features

• Weather resistant
• Breathable
• Lightly insulated
• Durable

Construction

• Hardwearing Fortius™ 2.0 softshell fabric has increased warmth to weight ratio and durability, with wind resistance and a DWR finish
• Taped seams for weather resistance, a low-profile finish, and added strength

Design & Fit

• Regular fit provides freedom of movement
• Garment Centre Back Length: Size M is 29"/74cm - Varies by size

Hem Configuration

• Adjustable hem draw cord seals out drafts

Patterning

• Articulated patterning for unrestricted mobility

Sustainability

• Contains materials that meet the bluesign® criteria
• PFAS (Per- and polyfluoroalkyl substances) Compliant
• Lining - bluesign® approved material, recycled content
• Shell - bluesign® approved material

Hem Leg Drop

• Drop

Cuff & Sleeves Configuration

• Shaped cuffs with low profile elasticated cuff at wrist

Fabric Treatment

• DWR (Durable Water Repellent) finish repels moisture and is PFAS-free

Pocket Configuration

• Two hand pockets with zippers
• Two chest pockets with zippers

Weight
510g

Activity
Climb/Boulder/Rock

Manufacturing Facility
YOUNGONE NAM DINH COMPANY LTD

Fit & Sizing

Fit
Regular - Arc'teryx's classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over or under our layers.

Materials & Care

Materials

• Origin of fabric: TAIWAN, CHINA
• Origin of dyeing: TAIWAN, CHINA
• May release plastic microfibres into the environment when washing
• Fortius™ 2.0 - 60D Synthetic Stretch Softshell with poly fleece backer, 233gsm, FC0 DWR

Care

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