A Retroreflectometer is used to check the performance of retroreflective tape. Every roll of tape is tested to ensure it meets and exceeds the standard requirements. The retroflectometer measures the coefficient of two rotating angles. EN ISO 20471 states the reading should not be below 330 (cd/lx.m2) however at Portwest they insist on a reading of 400 (cd/lx.m2) plus.
A spectrophotometer is used to check the chromaticity – “colour intensity” – of fabric. They use this to ensure every roll of fabric meets the requirements of EN ISO 20471 and RIS-3279-TOM.
RIS imposes a higher concentration for high visibility orange fabric for railway workers. This increases the conspicuous nature of the fabric and ensures that the rail worker is more visible.
Reflective tape must be at least 50mm wide. Bands of reflective tape must be positioned at least 50mm apart.
Reflective tape must be positioned 50mm or more from the end of sleeve or leg.
Reflective tape must encircle torso and/or limbs to be included in the calculation of the necessary square area of reflective tape. A gap (for fastening system or seam) in the band of reflective tape must be 50mm or less. The total amount of such gaps in every band must not exceed 100mm around the torso and 50mm around the sleeves and legs.
Highest level of protection - required for any persons working on or near motorways, dual-carriage ways or airports. Must incorporate a minimum of 0.80m2 of background material and 0.20m2 of retroreflective materials. (4 metres of 5cm wide reflective tape)
Required for any persons working on or near A and B class roads, also for delivery drivers. Must incorporate a minimum of 0.50m2 of background material and 0.13m2 of retro-reflective material. (2.60 metres of 5cm wide reflective tape)
Minimum level of protection required for any persons working on a private road or to be used in conjunction with a higher classed garment. Must incorporate a minimum of 0.14m2 of background material and 0.10m2 of retroreflective material. (2 metres of 5cm wide reflective tape)
Stretch your limits with the most dynamic workwear collection yet from Portwest®. This contemporary collection combines all the technical features required of modern workwear, with many clever innovations to ensure the wearer achieves maximum function and style.
The DX4™ collection combines high performance stretch fabrics with robust oxford panels to provide unparalleled ease of movement and supreme flexibility. What defines this collection is the cutting edge designs which allow for a full crossover from work to leisure activity.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Experience the intersection of innovation, style, and safety with the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black. Designed to prioritize wearer comfort and visibility, this base layer redefines modern work attire standards.
Key Features:
Meeting stringent standards set by SGS FIMKO Ltd and EN ISO 20471 Class 2, the Portwest DX4 Hi-Vis Zip Base Layer - Yellow/Black embodies Portwest's dedication to quality, comfort, and safety. When you adorn this piece, you're not just wearing a base layer; you're making a statement about your commitment to safety and style in your work environment.
Specifications are subject to change - See Terms & Conditions for more info
Portwest has been independently rated by Ecovadis for its environmental, social, and ethical performance and achieved a silver rating, meaning they are in the top 25% of globally rated companies.
The pillars taken into consideration include the environment, labour practices and human rights, ethics, and sustainable procurement.
This product conforms with essential health and safety requirements as set out in European Directives.
This symbol indicates UKCA marking in progress at time of print. All products placed on the UK market from January 2023 must be UKCA marked.
This garment meets the rail industry standard for high visibility warning clothing.
40+ UPF rated fabric to block 98% of UV rays.
This garment features 6 pockets.
This symbol indicates compliance with EN ISO 20471 after 50 washes (Minimum requirement under the EN norm is 5 washes).
This garment has a radio loop for easy attachment of a radio.
This garment features 2 pockets.
This product is a new addition to the range of Portwest products.
4-way stretch fabric for ease of movement and added comfort.
Elastane stretch yarns are used to give the fabric elasticity. 4-way stretch fabrics have warp elasticity, weft elasticity and bidirectional elasticity for maximum flexibility.
Wash at a Maximum Temperature of 40°C using a gentle wash cycle
Do not bleach this item
This item must not be tumbled dried
This item must be left to drip line dry
Do not iron this item
Do not dry clean this item
This item can only be washed a maximum of 50 times
EU Declaration of Conformity
