Mammut Eiger Extreme Half-Zip Longsleeve - Men'sThe Mammut Eiger Extreme Half Zip Longsleeve is engineered for those who demand high performance and superior comfort in their alpine pursuits. This top tier layer features a lightweight, breathable fabric that excels in fast paced activities, ensuring you stay dry and comfortable thanks to its effective moisture wicking properties. The half zip design allows for quick ventilation adjustments on the go, while the high collar provides extra protection