Casco de seguridad para construcción de cascos duros ANSI Z89.1 aprobado por OSHA, ventilado...
Ideal for hot-weather use, Hardhat Ventilation Design features eight vents for efficient cooling and superior internal air circulation. Ratchet knob can easily adjust size from 20.5 to 25",which fits head size 6 1/2 to 8".