The built-in LED improves near-range and medium-range viewing for up to 9.5 hours on a single charge (charging cable included). Rugged but refined; these ANSI impact-tested safety glasses are built to lastfeaturing premium anti-scratch and anti-fog clear lenses. Padding on the nose and temple pieces ensures comfort for long days and a snug; secure fit for high-intensity; active work. The included soft pouch provides an easy solution for protecting the glasses and lenses while not in use.