Alpine conditions are sporadic to say the least, so be sure to have the Men's Gepon GTX Stretch Jacket packed away the next time you're climbing up that high. Gore Tex gives this thin three layer shell reliable waterproof breathable protection, and the Stretch Vario shell moves with your every reach. Millet's Flex Comfort athletic cut slims the Grepon down in order to reduce weight and bulk. There are long zippers under each arm for ventilated airflow, and the hood adjusts over helmets or beanies with ease. There are more adjustments at the hem, cuffs, and collar for a secure fit.