Many sailing hats have added features including UPF protection and neck flaps. They include: - Columbia Bora Bora Booney Hat: This hat has UPF 50+ sun protection, a wide brim, a drawcord and toggle at the back to help with the fit, and a neck flap for extra sun protection. - Sunday Afternoons Adventure Hat: This hat has UPF 50+ sun protection and a wide 4-inch brim. There is also a neck flap and a chin strap to keep the hat securely in place. - Outdoor Research Sun Runner Cap: This hat also has UPF 50+ sun protection. It also has a removable sun skirt that provides extra sun protection for your neck and ears. There is a mesh panel for ventilation and a moisture-wicking headband. - Tilly LTM6 Airflo Hat: This hat has UPF 50+ sun protection, a wide brim, a mesh panel for ventilation, a moisture-wicking sweatband, and a chin strap to hold it in place.