Regulate your temperature during epic treks with this lightweight nylon ripstop roll-tab sleeve shirt that's finished with a new, adaptive technology to keep you comfortable throughout your journey. This technical finish provides a cooling sensation on the skin in warm conditions, and slows the spreading of moisture to reduce the cooling sensation in colder temperatures. The DWR (durable water repellent) finish sheds light precipitation until you can take cover from the storm. Ventilated upper back maximizes airflow to one of the key areas where men sweat the most. During your travels, stash cash or a credit card in the low-profile zippered pocket on the right chest. This lightweight shirt offers UPF 30 protection from the midday sun.