Joyutoy Navy Blue Safety Protection Baseball Bump Cap Hard Hat Head Protection Tech Cap Color: Navy blue, Outside Material: 100% pure cotton; Elastic with a quick release button. Inner material: Polyethylene PE; The AirPro Bump Cap provides increased airflow while remaining lightweight and still provides some protection. ABS shell and EVA Shock Absorbing Cradle; .We suggest you wash it gently by soft bristled brush and hang it in an airy place. Meets Safety Standard - EN781 Suit for women and men. For Summer, Winter Sports, Safety cap.