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RT23 Hi-Vis Short Sleeve T-Shirt | Hi-Vis Rail & EN ISO 20471
RT23 Hi-Vis Short Sleeve T-Shirt | Hi-Vis Rail & EN ISO 20471
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RT23 Hi-Vis Short Sleeve T-Shirt | Hi-Vis Rail & EN ISO 20471

€12,95

Orange
S
Vendor: Portwest Categories: 🦺 High-visibility Sweatshirts & T-shirts & Vests 🦺
Description

EN ISO 20471 Class 2 UPF 50+ OEKO-TEX RIS 3279-TOM RT23

RT23 Hi-Vis
Short Sleeve T-Shirt
Rail & Outdoor – Maximum Coolness

Portwest hi-vis T-shirt made from 100% polyester with bird-eye knit fabric, specially developed for railway companies. Maximum breathability, moisture management and UPF 50+ UV protection – ideal for summer days and indoor work. EN ISO 20471 Class 2 and RIS 3279-TOM certified. Available in sizes S to 5XL.

UPF 50+ – blocks over 98% of UV radiation. The polyester sports fabric comes from the sportswear sector and is particularly suitable for hot summer days due to its air permeability.
Buy now Specifications
Product data at a glance
ModelRT23 Hi-Vis T-Shirt
ManufacturerPortwest
TypeShort Sleeve T-Shirt
Material100% Polyester, Bird-Eye-Knit
Grammage175 g/m²
Hi-VisEN ISO 20471 Class 2
Rail StandardRIS 3279-TOM
UV ProtectionUPF 50+ – blocks 98% UV
CertificationCE certified, OEKO-TEX
FitGenerous
Standard DurabilityConfirmed after 50 washes
ColorOrange
SizesS – 5XL
EN ISO 20471 Class 2
UPF 50+ UV Protection
100% Polyester Bird-Eye-Knit
RIS 3279-TOM Rail
S – 5XL available
EN ISO 20471 Hi-Vis Class 2 – high visibility

RIS 3279-TOM Rail Standard

UPF 50+ Blocks over 98% of UV rays

OEKO-TEX Tested for harmful substances – harmless to health

50× washes Standard conformity permanently confirmed
Product Advantages

Cool, visible, and certified –
the T-shirt for hot work days

100% Polyester Bird-Eye-Knit

The fabric comes from the sportswear sector – particularly light, extremely breathable, and quick-drying. The bird-eye knit structure actively promotes air circulation and keeps you optimally cool on hot days.

EN ISO 20471 Class 2

High visibility with reflective strips according to EN ISO 20471 Class 2 – reliable visibility during the day, at dusk, and at night. Standard conformity confirmed after 50 washes.

UPF 50+ UV Protection

The polyester fabric blocks over 98% of UV radiation. UPF 50+ is the highest protection factor – significantly better than UPF 35+ or UPF 40+ – for maximum sun protection during outdoor activities.

Specially for Rail Operations

The RT23 was specially developed for railway companies and meets the British RIS 3279-TOM rail standard. It is the T-shirt for all operations in and around railway operations – including indoor work.

OEKO-TEX & CE Certified

OEKO-TEX certification guarantees materials tested for harmful substances – the shirt is harmless to health. Additionally CE-certified and tested for standard conformity after 50 washes.

Moisture Management & S–5XL

High-quality wicking effect: The fabric actively draws sweat away from the skin, dries quickly, and makes stain removal easier. Wide range of sizes from S to 5XL for all body types.


Technical Data

Material &
Specification

The Portwest RT23 Hi-Vis Short Sleeve T-Shirt is the lightest hi-vis shirt in the range and was specially developed for maximum breathability and high wearing comfort during summer work assignments. The 100% polyester Bird-Eye-Knit from the sports sector ensures a particularly light, quick-drying and moisture-wicking feel.

The shirt meets the requirements of EN ISO 20471 Class 2 and, thanks to its reflective strips, offers reliable visibility day and night. In addition, it is certified according to the RIS 3279-TOM rail standard and is therefore expressly suitable for use in railway and track areas – ideal for infrastructure, maintenance and work on the rail network.

With UPF 50+, the RT23 offers very high UV protection and reliably protects against intense sunlight during long outdoor assignments. The OEKO-TEX® certification also confirms the skin-friendly and tested material quality, free of harmful substances.

Particularly practical: The RT23 is made of the same material quality as the RT22 polo shirt and thus forms a uniform workwear series for professional teams.

Model name RT23 Hi-Vis Short Sleeve T-Shirt
Manufacturer Portwest
Type Short Sleeve T-Shirt
Outer fabric 100% Polyester, Bird-Eye-Knit
Grammage 175 g/m²
Hi-Vis EN ISO 20471 Class 2
Rail standard RIS 3279-TOM
UV protection UPF 50+ – over 98% UV blockage
Certification CE certified, OEKO-TEX
Standard durability Confirmed after 50 washes
Fit Generous
Use Summer, Indoor, Rail operations
Color Orange
Sizes S – 5XL
Certifications

Standards & Certificates
at a Glance


EN ISO 20471 Class 2
Hi-Vis – high visibility, standard conformity confirmed after 50 washes

RIS 3279-TOM
Rail Standard – specially developed and tested for railway operations

UPF 50+ classified
Blocks over 98% of UV radiation – highest UPF protection class

CE certified
Tested safety according to European standards

OEKO-TEX certified
Tested for harmful substances – harmless to the wearer's health
Care & Cleaning

Care Instructions

The 100% polyester Bird-Eye-Knit fabric of the RT23 is particularly easy to care for and quick-drying. Do not use bleach or fabric softeners – these can impair the hi-vis effect and reflective strips. EN ISO 20471 standard conformity is confirmed after up to 50 washes.

🌡️Machine wash according to manufacturer's instructions
🚫Do not use bleach – do not use fabric softeners
💨Quick-drying due to polyester Bird-Eye-Knit
🔥Iron according to manufacturer's recommendations
✅EN ISO 20471 standard conformity confirmed after 50 washes
Available Sizes
S
M
L
XL
XXL
3XL
4XL
5XL

With size 5XL, one of the few hi-vis T-shirts with this wide range of sizes. Size chart available on request.

Available Color

Orange
RIS 3279-TOM & EN ISO 20471 Class 2 certified

The RT23 is exclusively available in orange. Company printing and embroidery on request. The matching polo shirt is the RT22 in the same material quality.

Areas of Application

Ideal for warm days,
rail operations, and indoor work

Rail Operations
Road & Civil Engineering
Logistics & Warehousing
Municipal Services
Airport Services
Traffic Services
Indoor Work (Summer)
Emergency Services
Outdoor Summer
General Workwear

Why the RT23
is the Right Choice

For anyone looking for the lightest, coolest hi-vis shirt – especially for hot summer days, indoor use, and rail operations. With the highest UPF 50+ UV protection and maximum breathability.

Lightest hi-vis shirt – 175 g/m² – the Bird-Eye-Knit sports fabric is so light and airy that it is barely noticeable compared to other hi-vis shirts.
UPF 50+ – highest protection class – blocks over 98% of UV radiation. Significantly better than UPF 35+ or 40+. Ideal for long outdoor work in the sun.
RIS 3279-TOM – Rail Standard – specially developed for railway companies. If you need a T-shirt for rail operations that meets the British rail standard, the RT23 is the first choice.
S to 5XL – Broad Size Range – 8 sizes for almost every body type in the team. Matches the RT22 polo shirt for a uniform appearance.
Frequently Asked Questions

FAQ

What is the difference between RT23 (T-shirt) and RT22 (polo shirt)?
The RT23 and RT22 use the same 100% polyester bird-eye knit fabric (175 g/m²) and have the same certifications (EN ISO 20471, RIS 3279-TOM, UPF 50+). The difference lies in the cut: the RT23 is a classic T-shirt without a collar or buttons, while the RT22 is a polo shirt with the distinctive grey contrast collar. The T-shirt is even lighter to wear and more affordable.
What is the difference between UPF 50+ and other UPF values?
UPF (Ultraviolet Protection Factor) indicates how much UV radiation the fabric allows to pass through. UPF 40+ blocks 97.5% of UV radiation, UPF 50+ blocks over 98% – the RT23 is rated UPF 50+, offering the highest standardized protection factor. For long working days outdoors, this is a significant difference that contributes to long-term skin health.
Does the RIS 3279-TOM railway standard apply to the RT23?
Yes – the RT23 was specifically developed for railway companies and fully complies with the RIS 3279-TOM railway standard. As the shirt is only available in orange, the certification applies to all orders of this model, regardless of size.
What does OEKO-TEX mean for a high-visibility shirt?
OEKO-TEX Standard 100 is an independent certification that confirms all materials used in the product have been tested for harmful substances and are harmless to health. This is particularly important for shirts worn directly on the skin – like the RT23. The certification covers harmful substances such as pesticides, heavy metals, and formaldehyde.
How is the RT23 washed?
Machine wash according to manufacturer's instructions. Do not use bleach or fabric softeners – these can impair the brightness of the warning color and the reflective strips. The polyester bird-eye knit fabric dries very quickly and is particularly easy to care for. EN ISO 20471 norm conformity is confirmed after up to 50 washes.
Are bulk discounts and company branding possible?
Yes. For orders of 10 items or more, we offer tiered quantity discounts. Company branding and embroidery are also available upon request. Contact us directly.

Ready to order?

Bulk quantities, company branding, or samples available upon request.

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RT23 High-Visibility Short-Sleeved T-Shirt
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Specifications
Material Outer fabric: 100% Polyester, Bird-Eye-Knit 150g
Taschen Reflective tape for increased visibility Generous fit for wearer comfort Crew neck 40+ UPF rated fabric to block 98% of UV rays Certified to EN ISO 20471 after 50x washes Conforms to RIS 3279-TOM for rail industry (orange only)
Eigenschaften Breathable fabric keeps the body warm, cool and dry high cotton content for extra comfort Underarm mesh panel for ventilation Heat-resistant, flame-retardant reflective tape Modern V-neck design