The Carhartt 102691-410 FR Quilt Lined Bib Overalls in Men's size 36x30 are designed for the construction industry and are suitable for firefighters. Made from a durable cotton blend material, these overalls come in a classic blue color and are lined for added warmth. With a strong brand like Carhartt and high-quality construction, these overalls are a reliable choice for those in need of rugged work clothing.