Hi vis jackets, or high-visibility jackets, are essential safety gear designed to make the wearer more visible in low-light or hazardous conditions. The design of hi-vis jackets is governed by safety standards that vary by region. In the United States, for example, the American National Standards Institute (ANSI) sets specific guidelines for the color, reflective material, and placement on the garment. These standards ensure that the jackets provide maximum visibility and protection.

Beyond safety, hi-vis jackets are also designed for functionality and comfort. Many feature waterproof materials, insulation for cold weather, and breathable fabrics to keep workers comfortable in various conditions. Some modern hi-vis jackets even incorporate advanced technology, such as LED lights for additional visibility or built-in heating elements for warmth.

Overall, hi-vis jackets are a vital component of workplace safety, helping to protect workers by making them more visible and reducing the likelihood of accidents in potentially dangerous environments.