Hi-Vis Ultrasonic Heated Tunnel Jacket S548
by Portwest

Winter site work gets old fast when the cold cuts through everything. The Portwest S548 Hi-Vis Ultrasonic Heated Tunnel Jacket fixes that with integrated battery-powered heating panels built directly into the jacket. Not gimmicky warmth either. Actual heat where you need it.

Designed for cold outdoor worksites, infrastructure jobs, traffic control, logistics, and winter shutdown work, this jacket combines certified hi-vis protection with insulated comfort and adjustable heating performance. You get visibility, weather resistance, and warmth in one seriously capable outer layer.

Best for:

• Cold-weather construction and civil work
• Traffic management and rail infrastructure
• Warehouse and logistics yards
• Outdoor maintenance teams
• Early morning and night shift work

If you work outside in winter, this jacket starts making a lot of sense very quickly.

Pairs well with:

• Hi-vis work pants → complete compliant winter setup
• Waterproof work boots → wet weather site protection
• Winter gloves and beanies → full cold-weather PPE coverage

Features:

• Integrated carbon fibre heated panels provide adjustable warmth throughout the jacket
• Rechargeable battery system with up to 10 hours runtime depending on setting
• Three heat settings controlled directly from the chest button
• Ultrasonic heat-sealed baffle construction improves insulation and water resistance
• Hi-vis reflective tape improves visibility in low-light environments
• Fully lined insulated design retains warmth in cold conditions
• Removable hood for adaptable site use
• Water-resistant outer fabric helps repel rain, grime and moisture
• Contrast lower panels help hide dirt in heavy-use environments
• Elasticated cuffs and adjustable hem improve heat retention
• Multiple zip pockets provide secure storage for tools and essentials
• UPF 50+ fabric blocks 98% of UV rays
• Certified to EN ISO 20471 high-visibility standards
• Heat-sealed seams help resist wind and weather penetration
• Durable ripstop polyester outer construction for demanding work environments

Alternatives to consider:

• Need waterproof protection? → Hi-Vis Rain Jackets
• Want lighter winter layering? → Softshell Work Jackets
• Want maximum wet-weather coverage? → Hi-Vis Parkas