Protone medium layer isolation permeable to the air with abrasion and external surface resistant to the weather. Alpine climbing and climbing Alpine climbing and rock climbing equipment designed for efficient movements and protection in alpine environments. Breathable material breathable material allows the steam of humidity to escape, helping to regulate the temperature and elevation of comfort inside the garment. Gittere Proton when you are on the move - climbing, hiking, running paths - adjusting thermal comfort is essential. Made to balance the air flow and isolation, the proton jacket envelops the nucleus to provide heat without overheating. Softshell Dureble, The Fortius ™ Air 20 External extensions and balance a moderate wind and meteorological protection with air flow. Octa® Loft Knit Insulation provides heat that resists the suitcases over time. The chest pocket is sized for a radio and the layers of the coating easily under a shell.