ABS material.
Low profile design.
Rear padded suspension.
4- position harness points.
Replaceable sweat band.
Vented pressure pad.
Universal accessory slots. 
Passes high temperature.
Passes low temperature.
Easy to grasp knob and adjusts the suspension from 6 1/2 to 8.
Swinging hinge points.
Vented have universal accessory slots
Vented meet Class C. 
Custom imprinting available.
 
ANSI/ISEA Z89.1-2014 (R2019 - Hard Hats)
CAN/CSA Z94.1-2020