This traditional design hard hat comes equipped with a 6-point ratchet suspension that allows for front and rear vertical height adjusents for a comfortable fit. WorkHorse hard hats meet all applicable requirements for a Type 1 CSA helmet (top impact) as outlined in ANSI Z89.1-2014, Type 1, Class E, G, & C / cSEI CERT. MOD. CSA Z94.1-15, Type 1, Class E, G, & C.