Portwest ES1 Essential Hi-Vis Sweatshirt

When the temperature drops just enough to need an extra layer but a jacket feels like too much, the Portwest ES303 ES1 Essential Hi-Vis Sweatshirt hits the sweet spot. Designed for all-day wear in demanding work environments, this crew neck sweatshirt combines genuine comfort with certified high-visibility protection — making it an essential addition to any workwear wardrobe.

Crafted from a 65% polyester, 35% cotton 300g knitted fabric with a soft brushed backing, the ES303 feels great against the skin and holds up to the rigours of a hard-working day. The generous, roomy fit gives you the freedom to move naturally, whether you're on a construction site, a rail corridor, or a utilities project — and it layers effortlessly over base layers when conditions get colder.

Built-In Visibility You Can Rely On

The ES303 features reflective tape positioned to maximise your visibility in low-light and reduced-visibility conditions, ensuring you're seen clearly by colleagues, vehicle operators, and passing traffic. Combined with the bold hi-vis shell fabric, this sweatshirt keeps you conspicuous where it matters most.

Sun Protection Built Into Every Fibre

It's not just about being seen by others — the ES303 also shields you from above. The 40+ UPF rated fabric blocks 98% of harmful UV rays, making it a smart choice for outdoor workers who spend long hours exposed to sunlight across spring and summer months.

Certified for the Toughest Environments

The Portwest ES303 is fully compliant with leading industry safety standards:

• EN ISO 20471 Class 2 (size XS) and Class 3 (size S and above) — certified to maintain full compliance after 50 washes, so your safety standard doesn't drop as the garment ages.
• RIS 3279-TOM Issue 2 compliant (orange colourway only) — approved for use in the rail industry.
• Fully CE certified for professional use across European workplaces.

Why Choose the Portwest ES303?

• ✅ High-visibility certified to EN ISO 20471 Class 2 & 3
• ✅ Rail industry compliant (orange) – RIS 3279-TOM Issue 2
• ✅ Generous, roomy fit for all-day comfort and easy layering
• ✅ 40+ UPF sun protection – blocks 98% of UV rays
• ✅ Durable 300g knitted fabric with soft brushed backing
• ✅ Reflective tape for enhanced low-light visibility
• ✅ Ribbed cuffs and hem for a secure, comfortable fit
• ✅ Certification maintained after 50 washes
• ✅ CE certified

The ES303 is a practical, hard-wearing choice for construction workers, rail operatives, highways maintenance crews, utilities engineers, and any professional needing a reliable hi-vis mid-layer that delivers comfort without compromising on safety.