SELF-EXTINGUISHING HARD HAT SHADE. FITS REGULAR AND FULL BRIM HARD HATS. PROVIDES AIRFLOW, SHADE AND VISIBILITY. COTTON TWILL (HI-VIZ POLY OXFORD). FOLDS AWAY INTO 6" CIRCULAR POUCH. WIRE SPRING RIM. PATENTED SELF STORAGE POUCH. ASTM D6413 COMPLIANT AFTER 25 WASHES.