Arc'teryx Mens Proton Vest Black

When you’re in motion – climbing, hiking, running trails – regulating thermal comfort is essential. Made to balance air flow and insulation, the Proton Vest wraps the core to deliver warmth without overheating. Softshell durable, the Fortius™ Air 20 outer stretches, and balances moderate wind and weather protection with airflow. Octa® Loft knit insulation provides warmth that resists packing out over time. The chest pocket is sized for a radio, and the trim fit layers easily under a shell.

Technical Features Breathable

Air permeable

Light wind resistance

Construction Octa® Loft, clean finished, breathable insulation provides thermal protection while maintaining a comfortable micro climate

Fortius™ Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability

Design & Fit Trim fit with articulated patterning for mobility and freedom

Pocket Configuration

Two zippered hand warmer pockets

Stretch-woven zippered chest pocket sized for radio

Sustainability

Contains materials that meet the bluesign® criteria

Materials Octa® Loft breathable insulation - 100% polyester

Fortius™ Air 20 - 84% nylon, 16% elastane

Care Machine Wash Gentle Low

Tumble Dry Gentle Low

Do Not Bleach

Wash Dark Colours Separately

Do Not Dry Clean

Do Not Iron

Do Not Use Fabric Softener

Double Rinse