75/25 poly/nylon ripstop, 100% poly air mesh at top and back of crown No Fly Zone ® insect repellent technology UPF 30+ sun protection Moisture-wicking sweatband Adjustable cord and toggle at crown Adjustable chin drawcord Foam brim keeps hat afloat Elongated brim in the back for additional sun protection Specially treated products may be subject to additional requirements. Please check with your local authorities for any additional requirements that may apply.