100% Polyester Elastic closure high UV protection,Highly stretchable and Seamless keep you comfortable in any position,They are soft, light weight, breathable fabric, No sewn edges to irritate your skin, dry quickly. SIZE: Free MULTIFUNCTION: Used as headband ,neck tube, bandana, head scarf and cap for chilly morning jogs, sunny fishing trips, rides on winding roads, yoga sessions and runs down snowy slopes for women and men.You can wear in 16 or more different ways for your adventures and daily life. Perfect for various sports and outdoor activities: running, walking, cycling motorcycling, fishing,hunting,snowboarding etc;They keep your nose and mouth clean from breathing dust.