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Thermal Long Johns for Cold Weather Work & Winter Protection
Thermal long johns are an essential base layer for anyone working in cold or exposed conditions, helping to retain body heat while regulating moisture throughout the day. Worn underneath work trousers, they provide an extra layer of insulation without adding bulk, making them ideal for winter work and early morning starts.
Our collection includes lightweight, midweight, and heavyweight thermal leggings, allowing you to choose the right level of warmth depending on your working environment. Breathable fabrics and moisture-wicking technology help draw sweat away from the skin, keeping you dry and comfortable even during physically demanding tasks.
Designed for durability and performance, many of our thermal long johns feature stretch fabrics for unrestricted movement, flat seams to reduce irritation, and soft-touch finishes for comfort during long shifts. Options include standard thermal base layers as well as flame retardant and antistatic long johns suitable for higher-risk working environments.
We stock thermal long johns from trusted workwear brands such as Portwest, Helly Hansen, Blåkläder, JCB, and Tranemo, with a wide range of sizes and materials to suit different trades and conditions. Whether you’re working outdoors, in cold warehouses, or on exposed sites, these base layers are built for daily professional use.
Complete your cold-weather workwear setup by exploring our full Underwear & Thermals range and pairing your base layers with durable Work Trousers for dependable warmth and protection in all conditions.