Portwest S546 KX3 Ultrasonic Tunnel Warm Jacket

The Portwest S546 KX3 Ultrasonic Tunnel Jacket is a high-performance outer layer designed for outdoor workers and tradespeople who face cold, damp conditions. Its ultrasonic heat-seal construction and warm Insulatex insulation deliver reliable protection without bulk.

• Ultrasonic heat-seal construction: Forms the baffle lines without stitching, enhancing waterproof performance and eliminating fill shifting for consistent warmth.
• Water-resistant eco-conscious finish: The outer fabric finish causes water to bead away, helping you stay dry in light rain or misty conditions.
• Heat-sealed seams: Sealed seams provide improved water and wind resistance across the jacket’s construction.
• Insulatex lining: Inner soft Insulatex lining offers immediate warmth and comfort against the skin during long shifts.
• InsulatexPro filling: 260 g of InsulatexPro polyester fill delivers substantial warmth while remaining lightweight for easy movement.
• Ample pocket storage: Five pockets in total, including a concealed mobile phone pocket and zipped pockets for secure, easy-access storage of tools and essentials.
• Drawcord adjustable hem: Adjust the hem to trap warmth and seal out drafts in changing weather.
• Elasticated cuffs: Secure fit at the wrists to prevent wind ingress and improve overall warmth.
• Chin guard with internal storm flap: Extra comfort and wind protection at the neckline, reducing chafing and cold spots.
• Front zip and easy-grip zips: Full-length front zip with easy-grip pullers for quick on/off, even with gloves.
• Premium fabric composition: Shell: 100% Polyester 300T Microfibre with anti-static finish; Lining: 100% Polyester (65g); Filling: InsulatexPro 100% Polyester (260g).

The jacket is ideal for professionals who work outdoors in cold or damp environments—construction crews, maintenance teams, and logistics staff alike. The combination of heat-seal technology and InsulatexPro insulation provides warmth without bulk, while the water-repellent finish and sealed seams offer reliable protection against wind and moisture. With practical pockets for phones and tools, adjustable fit features, and glove-friendly zips, this jacket supports long shifts in variable weather and helps you stay focused on the job rather than the cold.