high-visibility — easily seen or noticed, especially for safety purposes; having prominent or conspicuous features

a construction worker wears a bright fluorescent yellow safety vest with reflective strips that gleam in the sunlight. The worker directs traffic near heavy machinery while the vest makes them clearly visible against the busy background. Heavy equipment operators can easily spot the worker from their cab windows because of the bright clothing. Other workers in regular clothes blend into the dusty brown environment while this worker stands out prominently. Nearby vehicles slow down as drivers immediately notice the fluorescent safety gear. clothing designed to be easily seen and noticed for safety purposes