The B121 Thermal Trousers are designed as a primary barrier against the cold, creating a vital layer of warmth around the lower body. For professionals working in unforgiving climates, maintaining core temperature starts with the skin-side layer. These trousers are engineered with a specific knit that focuses on thermal efficiency without adding unnecessary bulk under your standard workwear.
Constructed from a medium-weight 50% polyester and 50% cotton blend, these trousers strike a balance between durability and comfort. The fabric feels soft against the skin, reducing the risk of irritation during long shifts. By using a specialised knitting process, the material creates a layer of insulation that is highly effective at heat retention while remaining breathable enough to prevent overheating during physical exertion.
We do not offer customisation on this specific item as it is designed to be worn as a base layer. Because these trousers are worn directly against the skin and beneath other garments, embroidery or print would not be visible. Furthermore, adding branding could compromise the thermal properties of the fabric and potentially cause discomfort or skin irritation to the wearer.
These thermal trousers are essential for anyone working in outdoor environments during the winter months, such as construction sites, agricultural land, or railway maintenance. They are equally beneficial for staff in cold-storage facilities or unheated warehouses where consistent warmth is required to maintain productivity and safety.
Since 1976, MyWorkwear has been a trusted partner for UK businesses, providing high-quality garments that stand up to the rigours of the modern workplace. Operating from our base in Telford, we combine decades of expertise with a commitment to sourcing products that offer genuine protection and longevity for our customers.
For the most effective thermal regulation, these trousers should be worn as a close-fitting base layer directly against the skin. When layering, ensure your outer trousers are not too tight, as the B121 requires a small amount of space to trap air effectively. If you are between sizes, we recommend choosing the size that ensures a snug but comfortable fit to prevent heat loss.
To maintain the thermal efficiency and shape of your trousers, we recommend a domestic wash at a maximum temperature of 40°C using a mild process. Washing at higher temperatures or using aggressive cycles can damage the knit structure and reduce the garment's ability to trap heat.
Do not use bleach, as this will weaken the poly-cotton fibres and lead to premature wear. We strongly advise against tumble drying, as the high heat can cause significant shrinkage; instead, line dry the garment to preserve its length and fit. If ironing is required, use a maximum temperature of 150°C to avoid melting the polyester content. Finally, do not dry clean this product, as the chemical solvents used can degrade the soft texture of the fibres.
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