Outdoo Specification: * Material: Lightweight, breathable polyester blend * Adjustable Velcro closure for customizable fit * UV protection with built-in UPF 50+ sunscreen * Moisture-wicking sweatband for comfort * Reflective trim for visibility in low light * One-size-fits-most design for versatility Stay protected and stylish on your outdoor adventures with the Outdoor Research Sombriolet Sun Hat. Its lightweight, breathable polyester blend material provides superior comfort and UV protection with built-in UPF 50+ sunscreen. The adjustable Velcro closure ensures a customizable fit, while the moisture-wicking sweatband keeps you cool and dry. Plus, the reflective trim adds visibility in low light conditions. One-size-fits-most design makes it perfect for men and women alike.