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Portwest | SKU:
236066
Portwest DX434 DX4 Hi-Vis Class 1 T-Shirt S/S
£12.92
Ex. VAT
£15.50
Inc. VAT
Why buy from us
- Pay in 30 days with a Trade Account. No fees.
- Trade and bulk pricing available on request
- UK stock, dispatched fast
Portwest DX434 DX4 Hi-Vis Class 1 T-Shirt S/S - Orange/Black / S is backordered and will ship as soon as it is back in stock.
Ships in
1 – 2 working days
Quote in 3 hours
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- Made in the UK
- Pay in 30 days with Klarna. No fee. Learn more
- Next Day Delivery Available
Contrast Colour
Lightweight
Reflective
Wicking Technology
EN ISO 20471
Portwest DX434 DX4 Hi-Vis Class 1 T-Shirt S/S
Regular price
£15.50
Unit price
Unavailable
Portwest DX434 DX4 Hi-Vis Class 1 T-Shirt S/S - Orange/Black / S is backordered and will ship as soon as it is back in stock.
Why it works
Built for All-Day Visibility and Comfort
EN ISO 20471 Class 1 Visibility
Heat-applied Hivistex Pro segmented reflective tape keeps you visible in daylight and low light.
Moisture-Wicking Cooling Fabric
Wicks sweat away from the skin to keep you cool and dry through a full shift.
40+ UPF Sun Protection
Blocks 98% of UV rays for outdoor work in direct sun.
Practical Slim-Fit Design
A slim, active cut with a chest radio loop keeps kit accessible without restricting movement.
CE Certified, Registered Design
CE certified with a Registered Community Design, part of Portwest's DX4 range.
Overview
Portwest DX434 DX4 Hi-Vis T-Shirt - Overview
The Portwest DX434 is a short-sleeve hi-vis T-shirt certified to EN ISO 20471 Class 1, built from moisture-wicking DX4 fabric for workers who need certified visibility in a lightweight, breathable garment.
1Class
EN ISO 20471 Rating
40UPF
UV Protection Rating
9sizes
Size Range (S-6XL)
| Dimensions | |
|---|---|
| Size range | S to 6XL |
| Colourways | Orange/Black, Yellow/Black |
| Fit | Slim, active fit |
| Details | |
|---|---|
| Material | DX4 moisture-wicking performance fabric |
| Hi-vis standard | EN ISO 20471 Class 1 |
| UV protection | 40+ UPF (blocks 98% of UV rays) |
| Reflective tape | Hivistex Pro, heat-applied, segmented |
| Thermal rating | Not thermal rated |
| Waterproof rating | Not waterproof |
| Customisation | Embroidery and logo printing available |
| Gender | Unisex |
Frequently asked questions
What does "Class 1" mean compared to other Portwest hi-vis T-shirts?
What does "Class 1" mean compared to other Portwest hi-vis T-shirts?
Class 1 is the entry-level rating under EN ISO 20471 - it carries less reflective and background material than Class 2 or 3 garments, so it suits lower-risk settings such as yards, warehouses and general site work rather than roles working alongside live traffic. Check your risk assessment to confirm which class your role requires.
What's the radio loop for?
What's the radio loop for?
It's a small loop at the chest that lets you clip a radio in place, keeping it within reach without it swinging loose during the day.
Does the DX4 fabric actually keep you cooler than a standard hi-vis T-shirt?
Does the DX4 fabric actually keep you cooler than a standard hi-vis T-shirt?
The DX4 fabric is built to wick moisture away from the skin, which helps you stay dry and comfortable rather than genuinely lowering your body temperature.
Will the reflective tape survive regular washing?
Will the reflective tape survive regular washing?
The Hivistex Pro tape is heat-applied and the shirt is certified to EN ISO 20471 Class 1 after 50 industrial washes, so it holds up to routine laundering.
Can I get this branded with my company logo?
Can I get this branded with my company logo?
Yes - the DX434 supports both embroidery and logo printing, so it can be set up as branded corporate or site workwear.
What sizes and colours are available?
What sizes and colours are available?
S to 6XL in both Orange/Black and Yellow/Black.
Is it warm enough for winter or waterproof for rain?
Is it warm enough for winter or waterproof for rain?
No - this is a lightweight short-sleeve T-shirt with no thermal rating and no waterproof rating, so it's a summer or under-layer garment rather than outerwear.
