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The Arc'teryx Gamma MX Jacket is built around Fortius 2.0 fabric — a midweight construction that handles wind, repels water, breathes, and takes serious abuse without complaint. The articulated patterning and stretch give you full range of motion whether you're swinging tools on ice or moving fast through fall alpine terrain, and the updated regular fit creates enough room to layer underneath. A proven all-conditions piece that earns its place no matter what the day holds.
Body – Fortius™ 2.0 60D Synthetic Stretch Softshell, 84% Nylon / 16% Elastane
100% Polyester Backing
FC0 DWR (PFC-Free)
Regular Fit – Arc'teryx 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.
Articulated Patterning for Unrestricted Mobility
Two Zippered Hand Pockets
Two Zippered Chest Pockets
No Slip Zip™ – Prevents inadvertent opening.
UPF 40+ Sun Protection
Adjustable Hem Drawcord
Laminated High Stretch Hangar Loop
Laminated, Stretch Gusset Cuffs
Laminated Chin Guard
Soft Brush Lined Collar
| Warmth | Description | Ideal Conditions |
| Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
| Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
| Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
| Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |