Arc'teryx

The Proton Vest Black is a sleeveless jacket from Arc'Teryx that will be ideal as a second layer for all your activities in the mountains, from climbing to hiking to mountaineering or trail running.

Updated this season with a new Octa® Loft insulation, it offers an ideal balance between ventilation and insulation, to let your body breathe during your intense activities while protecting you from the cold efficiently. Stretchy, its Fortius™ Air 20 softshell outer fabric is both breathable and windproof, while its insulation will help you retain your body heat and keep its loft season after season. The fit of the Proton Vest Black is pre-shaped and tailored to follow your every move. Finally, the Proton Vest Black's new chest pocket will hold a radio while its two hand pockets have a zipper closure to keep your small items safe. An ideal Arc'Teryx second layer to wear over thermal underwear and under a hardshell jacket in bad weather conditions.

• Sleeveless jacket.
• Breathable.
• Windproof.
• Fitted and pre-shaped.
• Breathable Octa® Loft insulation.
• Fortius™ Air 20 outer fabric.
• Two zippered handwarmer pockets.
• Stretchy zipped chest pocket that can accommodate a radio.
• Materials.
• Breathable insulation in Octa™ Loft - 100% polyester.
• Fortius™ Air 20 - 84% nylon, 16% elastane.