Harmony Lab & Safety Supplies

Enhancing Safety with High-Visibility Vests: Everything You Need to Know

High-visibility vests play a crucial role in ensuring the safety of workers in various industries. Their bright colors and reflective materials make them easily noticeable, which helps in preventing accidents and injuries.

This comprehensive guide will discuss everything you need to know about high-visibility vests, including their types, classifications, standards, and factors to consider when selecting the right vest for your workers.

Understanding High-Visibility Vests

A high-visibility vest is a piece of protective clothing designed to enhance the visibility of workers in hazardous environments. These vests are made of bright, reflective materials that make them easily noticeable, even in low-light conditions.

High-visibility vests are commonly used by workers in various industries, such as construction, transportation, and emergency services, who need to be easily seen by others, especially motorists, to prevent accidents and injuries.

Importance of High-Visibility Vests

The primary purpose of high-visibility vests is to make workers more visible, ensuring their safety in hazardous work environments. High-visibility vests are particularly important in low visibility conditions, such as night-time, foggy, or rainy weather, when it is difficult for motorists to see workers. By wearing high-visibility vests, workers can significantly reduce the risk of accidents and injuries.

ANSI/ISEA 107-2015: The Standard for High-Visibility Safety Apparel and Accessories

The American National Standards Institute (ANSI) and the International Safety Equipment Association (ISEA) have established the ANSI/ISEA 107-2015 standard for high-visibility safety apparel and accessories.

This standard specifies the performance requirements, minimum amounts of background and retroreflective materials, colors, and placement of materials for garments, supplemental items, and accessory items used to enhance the visibility and safety of workers.

The ANSI/ISEA 107-2015 standard defines three performance classes of garments based on the number of visible materials and design attributes:

  1. Class 1: Provides the minimum amount of high-visibility materials and is suitable for workers in non-complex work environments where traffic speeds do not exceed 25 mph.
  2. Class 2: Offers additional high-visibility materials, providing better visibility and longer detection distances compared to Class 1. These vests are suitable for workers in areas where traffic speeds are below 50 mph.
  3. Class 3: Provides the highest level of visibility with the mandatory background placement and retroreflective materials on sleeves and pant legs (if present). These vests are typically worn by workers in high-risk environments, such as roadway construction and utility workers.

In addition to the performance classes, the ANSI/ISEA 107-2015 standard also defines three types of high-visibility safety apparel based on the expected use settings and work activities:

  1. Type O (Off-Road): Designed for use in occupational environments with struck-by hazards from moving vehicles, equipment, and machinery, but without exposure to traffic on public access highway rights-of-way or roadway temporary traffic control (TTC) zones.
  2. Type R (Roadway): Intended for use in occupational environments with exposure to traffic from public access highway rights-of-way, roadway temporary traffic control (TTC) zones, or work vehicles and construction equipment within a roadway TTC zone.
  3. Type P (Public Safety): Developed for emergency and incident responders and law enforcement personnel exposed to struck-by hazards in both roadway and off-road environments. These garments offer additional options to address competing hazards or the need for access to special equipment.

Non-ANSI Safety Vests

Non-ANSI safety vests, or Class 1 safety vests, do not meet the ANSI/ISEA standards. Workers can wear these vests in areas where traffic does not exceed 25 mph, such as parking lot attendants, shopping cart retrievers, and warehouse workers.

Although they do not meet the ANSI standards, non-ANSI safety vests still provide a basic level of visibility for workers in low-risk environments.

Factors to Consider When Choosing a High-Visibility Vest

When selecting a high-visibility vest for your workers, it is essential to consider various factors that affect the vest’s performance and suitability for the work environment. Some of these factors include:


The color of the vest is crucial as certain colors are better suited for specific work environments. For instance, bright colors like yellow and orange are more appropriate for outdoor areas, while darker high-visibility vests may be suitable for indoor environments like warehouses with consistent lighting.


High-visibility vests are available in various fabric options, such as cotton and polyester. Different fabrics offer different benefits, like flame or water resistance, and provide varying levels of comfort and durability. Consider the nature of the work and the workers’ preferences when choosing the vest’s fabric.


The season the vest will be worn is also an essential factor to consider. For instance, vests with breathable materials and lighter fabrics may be more suitable for warmer weather conditions, while vests with insulating materials and heavier fabrics may be better for colder seasons.


Different high-visibility vests come with various features, like pockets, loops, badge holders, mic tabs, and ID panels, which can enhance functionality and convenience for workers. Consider your workers’ specific needs and job requirements when selecting a vest with the appropriate features.


High-visibility vests are available in various designs and styles, such as camouflage patterns for outdoor environments or multicolored vests that meet classification standards while offering an alternative style. Choose a vest design that suits your workers’ preferences and the work environment.

Fit and Comfort

Ensure that the high-visibility vests fit your workers properly and offer adequate comfort. Some vests are available in adjustable designs or specific sizes for smaller workers or women, providing a better fit and increased comfort.

Flame-Resistant and Self-Extinguishing Vests

For workers exposed to flames, sparks, arc flashes, and other flammable situations, flame-resistant (FR) and self-extinguishing vests are available. FR vests, which meet the ASTM 1506 standard, are inherently flame-resistant, while self-extinguishing vests, which meet the SE D6413 standard, are chemically treated to make the base fiber flame retardant. These vests are ideal for utility workers, welders, public safety personnel, oil field workers, first responders, and petrochemical refining and shipyard workers.

New Garment Tag Requirements

With the “TYPE” categorization in the ANSI/ISEA 107-2015 standard, new tags are required for high-visibility garments. Each tag must show the Type and Class and specify whether the vest is flame-resistant (FR), including its tested capability.


High-visibility vests are essential safety gear for workers in various industries, ensuring their visibility and protection in hazardous work environments.

When selecting a high-visibility vest for your workers, it is crucial to consider factors such as the vest’s color, fabric, season, features, design, fit, comfort, and the specific ANSI/ISEA standards and classifications.

By providing your workers with the appropriate high-visibility vests, you can significantly enhance their safety and reduce the risk of accidents and injuries.


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