High-visibility clothing, sometimes shortened to hi vis or hi viz, is any clothing worn that is highly luminescent in its natural matt property or a color that is easily discernible from any background. It is most commonly worn on the torso and arm area of the body. Health and safety regulations often require the use of high visibility clothing as it is a form of personal protective equipment. Many colors of high visibility vests are available, with yellow and orange being the most common examples. Colors other than yellow or orange may not provide adequate luminescence for conformity to standards such as ISO 20471.
Fluorescent green safety vest. Retroreflective stripes are optional for low-light conditions, but do not define the meaning of hi-viz clothing.
A police officer in Taiwan wears a white motorcycle helmet in conjunction with a high-visibility vest. According to a 2004 study, the wearing of reflective or fluorescent clothing correlated with a 37 percent lower risk of a rider sustaining a crash-related injury; likewise, white helmets demonstrated a 24 percent reduction.
Bicycle-mounted police with high-visibility jackets.
Network Rail staff working in RIS-3279-TOM compliant high-visibility clothing on track renewals just south of Leicester railway station
Clothing is any item worn on the body. Typically, clothing is made of fabrics or textiles, but over time it has included garments made from animal skin and other thin sheets of materials and natural products found in the environment, put together. The wearing of clothing is mostly restricted to human beings and is a feature of all human societies. The amount and type of clothing worn depends on gender, body type, social factors, and geographic considerations. Garments cover the body, footwear covers the feet, gloves cover the hands, while hats and headgear cover the head, and underwear covers the private parts.
Clothing in history, showing (from top) Egyptians, Ancient Greeks, Romans; Byzantines, Franks; and thirteenth through fifteenth century Europeans
A kanga, worn throughout the African Great Lakes region
Hindu lady wearing sari, one of the most ancient and popular pieces of clothing in the Indian subcontinent, painting by Raja Ravi Varma
A young woman wearing t-shirt and shorts at the warm summer in Åland