MOS Reference: Lightweight bump cap designed for low-clearance work environments where full hard hat protection is not required. Internal ABS shell insert protects against minor bumps and scrapes from overhead obstructions like pipes, beams, and low doorways. Baseball-cap style design with breathable mesh panels and adjustable strap for comfortable all-day wear. Not rated for falling object protection -- use a hard hat where OSHA requires impact-rated head protection.