The Whistler Vented Cap Style Hard Hat by Boss Manufacturing is a Type I safety helmet designed for comfort and protection in industrial settings. This vented model features a wheel ratchet suspension for easy size adjustment, ensuring a secure fit. Made from high-density polyethylene, it offers excellent impact resistance. The vented design promotes airflow, keeping the wearer cool during hot conditions. Compliant with ANSI Z89.1 standards, this hard hat is suitable for construction, manufacturing, and other hazardous environments, providing essential safety without compromising comfort.