Key attributes: Material 100% Polyester Head Circumference Adjustable Applicable scene Travel, Outdoor, Sports, Casual, Party, PERFORMANCE Applicable Season Four Seasons Style Fashion, Casual, Hip Hop Pattern Type Others, Customized At a glance: 100% Polyester Material: The 100% polyester material ensures durability and easy maintenance, making it suitable for frequent use in various outdoor activities. Adjustable Head Circumference: An adjustable head circumference provides a comfortable and secure fit for different head sizes, enhancing the wearer's experience during sports and casual wear.