MAXIMUM SUN PROTECTION: UPF 50+ large brim blocks 98% of harmful UVA and UVB rays, this outdoor hat is better than your average sun hat. It is a perfect hat for the beach, fishing, hiking, camping, traveling, hunting, gardening or any outdoor activities. Packable and lightweight: The hat is packable and packable, making it the ideal hat for any road trip, commute, or weekend getaway. STAY COOL: Our lightweight hat features mesh panels and two-sided ventilation, allowing your head to stay ventilated and cool, even on the hottest, humidest days. One Size Fits Most: Casual style unisex sun hat, comfortable and cozy fit. Hat size available, from 22 to 23.6 inches. Adjustable back elastic drawstring design, one size fits all, suitable for most adults.