Quick-Dry & Lightweight Fabric: Made from 88% nylon and 12% spandex, the material offers a soft stretch, is fast-drying and water-resistant for lasting comfort Full-Coverage Sun Protection: Featuring a 10.24" neck flap and 2.95" brim, this unisex cap is designed to provide complete sun defense for fishing, hiking, and more Designed for All-Day Breathability: Laser-perforated vents is placed on both sides of the crown and along the neck flap, ensuring continuous airflow to keep you cool and comfortable Adjustable for a Universal Fit: An adjustable elastic strap at the back ensures a custom fit for head sizes 22.0-23.2 inches, while the soft, moisture-wicking sweatband provides all-day comfort Ideal for Outdoor Adventures: The neck flap sun cap is packable and easy to carry, making it the perfect companion for various activities. It is ideally suited for hiking, fishing, camping, golf, and more