The FR429 Insulated Bib Pants FR429RBTXL by Portwest LLC are designed for extreme cold weather conditions. These insulated bib pants feature a durable outer layer that is both waterproof and windproof, ensuring maximum protection against the elements. The FR429RBTXL model is equipped with adjustable straps for a secure fit and reinforced knees for added durability. With a focus on safety, these pants meet industry standards for thermal insulation, making them ideal for outdoor work in winter. Perfect for construction, mining, and other cold-weather applications, these bib pants provide essential warmth and protection.