Welding Safety Shoes are crucial PPE designed to withstand high temperatures, molten metal splatter, and sparks. They must comply with the EN ISO 20349-2 standard (formerly EN ISO 20349) or have specific markings like HRO, HI, M. The essential requirement is the quick release system (absence of exposed laces, often with Velcro or buckle closure) to allow the shoe to be removed immediately in case of an accident. Models are typically made of flame-retardant leather, with a safety toe cap and anti-perforation sole.