High-visibility waistcoats or vests are an essential component of personal protective equipment (PPE) worn by workers in low light or poor visibility environments. They are typically made of fluorescent materials such as yellow, orange, or green, which make the wearer more visible during the day. At night, retro-reflective stripes or patches on the waistcoat reflect the light from vehicles or other sources to increase visibility. High-visibility waistcoats or vests are often used in construction sites, highways, railway stations, airports, and other hazardous work areas where workers need to be seen by drivers, operators, or pedestrians. They come in various sizes, styles, and designs, including zip-front, button-front, multi-pocket, and adjustable strap, to accommodate different body types and job requirements. The PPE regulations require high-visibility waistcoats or vests to meet specific standards, such as EN ISO 20471:2013 or ANSI/ISEA 107-2015, depending on the region and the type of work.
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