The Arc'teryx Bird Word Trucker Hat features a lightweight and breathable Circuit™ stretch polyester front, as well as a Breathable monofilament mesh back that provides both ventilation and structure. The Soft Spacermesh™ headband wicks moisture and allows airflow, while also drying quickly. The curved brim includes a plastic stiffener to maintain its shape and a foam insert for added comfort. The snap-back design can be easily adjusted for a secure and comfortable fit.