One of the primary functions of safety trousers is physical protection. Many models include reinforced knee pads, heavy-duty fabric layers, and rip-resistant materials to withstand frequent bending, kneeling, or contact with rough surfaces. Some trousers are also flame-retardant, which is essential for welders, electricians, and others exposed to high heat or sparks.
https://britainmall.uk/collections/safety-trouser



