High visibility (Hi-Vis) workwear is an essential part of workplace safety across Australian industries including construction, civil works, logistics, warehousing, and mining. Designed to improve worker visibility in both daylight and low-light conditions, hi-vis clothing plays a key role in reducing workplace accidents and ensuring compliance with PPE regulations.
At Kaya Workwear, our high visibility range is designed to meet or exceed Australian and New Zealand Standard AS/NZS 4602.1:2011, which governs the performance, testing, and classification of hi-vis safety garments used across Australia.
This guide explains how hi-vis standards work, what testing is required, and what you need to know when choosing compliant high visibility workwear.
Australian Hi-Vis Standard: AS/NZS 4602.1:2011
According to Australian Standards, materials classified as high visibility for daytime use must be manufactured from:
- Durable woven or knitted cotton fabric, or equivalent man-made fibre
- Fabric containing fluorescent pigment or high-visibility dye
- Materials coated with fluorescent plastic coating where applicable
These materials must undergo strict testing to ensure they meet required visibility and durability performance standards for workplace safety.
Mandatory Testing Requirements for Hi-Vis Fabrics
High visibility materials used in compliant PPE are subjected to rigorous testing and must meet or exceed minimum requirements for:
- Daylight colour and luminance factor
- Colour fastness to light
- Colour fastness to washing
- Colour fastness to perspiration
- Colour retention testing
These tests ensure hi-vis garments maintain visibility and performance even after repeated industrial use, washing cycles, and exposure to harsh working environments.
Fabric Performance Standards for Hi-Vis Clothing
In some cases, for safety requirements, garments must be made from natural fibres that cannot retain fluorescent colour.
In these instances, materials are tested for:
- Luminance for non-fluorescent materials
Alternatively, man-made fibres are generally capable of retaining fluorescent colour and are tested for:
- Luminance for fluorescent materials
All fabrics used in Kaya Workwear high visibility clothing are tested and must meet or exceed specified minimum performance requirements for:
- Chromaticity
- Luminance for fluorescent materials
- Luminance for non-fluorescent materials
These performance requirements ensure consistent visibility across different fabric types and work environments.
Hi-Vis Safety Classes Explained
Under AS/NZS 4602.1:2011, hi-vis garments are classified according to their intended use:
Class D (Day Use)
- Meets AS/NZS 4602.1:2011 requirements for daytime visibility only
- Designed for use in daylight working conditions
Class N (Night Use)
- Meets AS/NZS 4602.1:2011 requirements for night-time visibility
- Uses retro-reflective materials to enhance visibility in low-light environments
Class D/N (Day and Night Use)
- Meets AS/NZS 4602.1:2011 requirements for both day and night use
- Suitable for 24/7 worksites with changing light conditions
Important Note: Hi-Vis Workwear Limitations
- Hi-vis pants, shorts, and other lower-body garments are not part of hi-vis compliance standards and therefore do not comply with AS/NZS 4602.1:2011
- Only upper-body garments such as shirts, vests, and jackets are classified under hi-vis visibility compliance standards
IMPORTANT: Limitations of Use and Safety Warnings
Under no circumstances should Class D garments be worn for visibility purposes at night.
Any modifications to garments may affect compliance and safety performance, including:
- Screen printing or markings not part of the original garment
- Added attachments or accessories
- Coverings or alterations that reduce reflective or fluorescent properties
Such changes may reduce visibility performance and increase risk to the wearer.
Environmental and Wear Limitations
Hi-vis performance may reduce over time due to:
- Normal wear and tear
- Fabric stretching
- UV exposure and fading
- Industrial washing and cleaning processes
Kaya Workwear high visibility garments made from natural fibres have been tested and comply with AS/NZS 4602.1:2011 in dry conditions only.
Wet conditions may impact compliance, so appropriate care should always be taken when wearing hi-vis garments in rain or high-moisture environments.
Why Hi-Vis Standards Matter in Australia
High visibility clothing is more than workplace apparel—it is a regulated safety requirement designed to:
- Improve visibility around machinery and moving vehicles
- Reduce workplace accidents and injuries
- Ensure compliance with Australian safety regulations
- Protect workers in high-risk industries
Choosing compliant hi-vis workwear ensures workers remain visible, safe, and protected on site.
Shop Compliant Hi-Vis Workwear at Kaya Workwear
Kaya Workwear supplies high visibility clothing designed for Australian workplaces, built for durability, comfort, and compliance with national safety standards.
Our range includes hi-vis shirts, jackets, vests, and certified workwear designed for tradies, industrial workers, and high-risk environments across Australia.