When sourcing mining safety wear, prioritize Flame Resistant (FR) fabrics such as Nomex, Modacrylic blends, or treated cotton (Proban/Pyrovatex). The material weight should typically range between 250gsm to 450gsm depending on the climate. Ensure the use of triple-stitched seams for durability and high-visibility reflective tapes (e.g., 3M Scotchlite) that meet Class 2 or Class 3 visibility standards. Additionally, look for reinforced knee pads and elbow patches to extend the garment's lifespan in abrasive underground environments.