PORTWEST B123 Thermal T-Shirt Long Sleeve

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PORTWEST B123 Thermal T-Shirt – Long Sleeve Base Layer for Cold Weather Comfort

The PORTWEST B123 is a reliable long sleeve thermal t-shirt, designed to provide essential warmth and moisture control in cold working conditions. Ideal as a base layer, it retains body heat while allowing sweat to evaporate, keeping you dry, warm, and comfortable all day.

Perfect for layering under jackets, fleeces, or overalls, the B123 offers a soft-touch finish and close fit that supports freedom of movement without restricting mobility. Whether you're working outdoors or in unheated indoor spaces, it's a go-to thermal top for winter wear.

Key Features:

  • Long sleeve thermal base layer for cold environments

  • Moisture-wicking performance keeps skin dry and warm

  • Soft-touch interior ensures lasting comfort

  • Close-fit stretch design for unrestricted movement

  • Ideal for layering under outerwear or waterproofs

  • Quick-drying and easy-care for daily use

  • Low-profile seams minimise irritation


Ideal For:

  • Cold weather construction or site work

  • Warehousing, logistics, and outdoor jobs

  • Winter sports, leisure, or casual wear

  • Base layer for waterproofs or overalls

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