Arc'teryx Proton Vest Mens

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.

• Breathable
• Air permeable
• Light wind resistance
• Two zippered hand warmer pockets
• Stretch-woven zippered chest pocket sized for radio
• Contains materials that meet the bluesign criteria

Weight
220 g

Size and Fit
Fit: Fitted

Materials
Main Fabric: Fortius Air 20
Fabric Materials: 84 % nylon, 16 % elastane
Insulation: Octa Loft
Insulation Material: 100 % polyester