This quick-dry, wrinkle-resistant, easy-care shirt is made from a lightweight blend of 53% nylon/47% TENCEL lyocell fabric. It has a motion-oriented design with mesh lining in the back to wick moisture, increase breathability and allow a cooling draft. Reflective tape details under the collar glow when illuminated, making you more visible in low light. We sized the left chest pocket to hold a passport and the right chest pocket accommodates a medium fly box. A regular fit increases airflow.