| Availability: | Out of stock |
Climbing durable, trail light, midlayer or standalone, the versatile Proton FL’s breathable thermal protection delivers comfort across a range of temperature and output levels. Octa Loft knit insulation provides warmth, resists packing out, and allows airflow to regulate comfort. Abrasion-resistant Fortius Air 20 fabric stretches, resists wind, and allows temperature-regulating airflow. A zippered chest pocket secures a radio, articulation aids mobility, and the low-profile insulated hood fits comfortably under your helmet.
Updated with improved Octa Loft knit insulation and resized stretch chest pocket.
Weight 342.8g / 12.1 oz
Activity Rock Climbing / Alpine Climbing
