2-in-1 Versatile Design with Detachable Top for Ventilation: Features an innovative detachable top crown, allowing you to switch between a full-coverage wide-brim hat and a breezy, open-top sun hat in seconds. This design promotes superior airflow, reducing heat buildup for enhanced comfort during extended outdoor exposure. High-Performance Polyamide with UPF 50+ & Waterproof: Crafted from premium lightweight polyamide, this hat is engineered for sun safety and comfort. The fabric offers excellent UPF 50+ protection, effectively blocking over 98% of harmful UV rays to safeguard your skin. Combined with its quick-drying and water-resistant properties, it provides reliable defense against sun, sweat, and light rain. Adjustable Fit with Secure, Detachable Chin Strap: Hat Circumference: 22.05-22.83 inches. The adjustable drawstring and chin strap work together to ensure the hat stays comfortably in place on various head sizes. The chin strap offers extra security, keeping your hat safe even in windy conditions. Suitable for fishing, hiking, camping, beach, adventure, and other outdoor activities, and can also be worn daily. Convertible Style: Instant Cowboy Hat Transformation: Unleash your style versatility. Simply flip up and secure the sides of the wide brim to instantly transform your sun hat into a fashionable cowboy hat. It's the perfect accessory for adapting your look from beach to western-themed events effortlessly. Cool to Wear, Portable & Shape-Retaining: Engineered for coolness and ultimate convenience. The hat can be folded compactly for easy packing in your travel bag or luggage without worrying about permanent creases. Its robust construction ensures it pops back to its original shape, ready to wear whenever you need it.