S548 - Hi-Vis Ultrasonic Heated Tunnel Jacket
The Portwest S548 Hi‑Vis Ultrasonic Heated Tunnel Jacket is engineered for professionals who need reliable warmth and visibility during long shifts outdoors. Its standout feature is the integrated carbon‑fibre heating system, with panels embedded inside the padded body to deliver targeted warmth. A three‑setting chest‑mounted control button allows the wearer to adjust heat output easily, while the rechargeable battery provides 3–10 hours of heat, depending on the setting.
The jacket uses ultrasonic heat‑sealed baffle fabric, which increases water resistance and prevents cold air ingress. The outer shell is made from polyester ripstop with a TPU membrane, offering durability and weather protection. A premium stain‑resistant finish helps repel oil, water and grime, keeping the jacket looking cleaner for longer.
Certified to EN ISO 20471 Class 3, the S548 provides the highest level of hi‑vis protection. The Hi‑Vis Orange version is also RIS‑3279‑TOM compliant, making it suitable for rail environments.
Additional features include elasticated cuffs, a drawcord hem, heat‑sealed seams, and a chin guard with internal storm flap, all contributing to improved comfort and weather resistance.
Key Features
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Carbon‑fibre heated panels embedded in the jacket
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Three heat settings controlled via chest button
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Rechargeable battery providing 3–10 hours of heat
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Ultrasonic heat‑sealed baffle fabric for enhanced water resistance
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Premium stain‑resistant finish repels oil, water and grime
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EN ISO 20471 Class 3 certified
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RIS‑3279‑TOM compliant (orange only)
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Water‑resistant outer shell with heat‑sealed seams
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Elasticated cuffs and drawcord hem for a secure fit
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Chin guard with internal storm flap
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UPF 40+ fabric for UV protection
