If you are not a professional welder, you can use leather boots when doing any ordinary welding job.
You might already know that leather is naturally heat-resistant and can sustain welding sparks.
Although leather boots don't ensure complete safety, they can be used for ordinary welding jobs.
If you are more concerned about your feet' safety, you should wear welding work boots while welding.
These boots have electric spark prevention to ensure your feet 100% safe.
In the case of professional welders, the leather boots are not very effective and can't withstand the severity of the professional welding process.