Portwest B123 Thermal T-Shirt: Thermoregulation Engineering and High-Performance Base Layer

The B123 thermal t-shirt is a fundamental piece in the layered protection system, designed to act as an active regulator of body temperature. Made with a specialized knitted fabric of 100% polyester with wicking properties, this garment creates an insulating barrier that retains metabolic heat while transporting moisture away from the skin. Its long-sleeved design ensures full coverage, making it indispensable for personnel operating in cold environments or with sudden temperature changes.

Why is this equipment vital for the operation?

• Advanced Microclimate Management: The technical fabric is structured to allow superior breathability, preventing evaporative cooling of sweat, a critical factor in preventing thermal shock during periods of high physical activity.
• Superior Ergonomic Comfort: Its low-profile construction allows the garment to conform to the body's contours without adding excessive bulk, facilitating the layering of shirts, vests, or overalls without restricting the worker's mobility.
• Contact Thermal Protection: The soft finish of the fabric minimizes skin friction, while elastic cuffs ensure a thermal seal that prevents cold air currents from entering through the extremities.

Regulatory Compliance Analysis

This equipment has been designed under standards of thermal efficiency and industrial durability. The polyester fiber used has high mechanical resilience, which ensures that the garment maintains its elasticity and insulation capacity after multiple washing cycles, ensuring that the thermal protection standard remains constant throughout the operational season.

• Material: 100% Polyester with moisture-wicking technology (140g).
• Base Layer Design: Ergonomic fit optimized for use under industrial uniforms.
• Resistance: Pre-shrunk fabric that maintains dimensional stability.
• Functionality: Crew neck and ribbed cuffs for an effective thermal seal.