I wear leather gloves, but wouldn't hesitate to use a knitted Kevlar alternative, especially since it would insulate much better.
Here are some options I've seen but I really have no idea if they're good enough:
* https://www.amazon.com/Ironclad-HW6X-04-L-Heatworx-Heavy-Glo...
* https://www.amazon.com/ThxToms-932%C2%B0F-Resistant-Kevlar-G...
* https://apparelsolutionsinternational.com/products/fr-covera...
To me, the question is not whether the alternatives would be as good as leather but would be a good enough alternative to leather.
Obviously, it all comes down to balancing needs and risks. I just thought I'd point out how you can meet or exceed one requirement (flameproofing) but potentially create a new risk in the process.
It depends of what she/he consider protective gear. Kevlar is fine. Anything that is regulated, lawful, well tested, reliable and covered by the assurance is fine. Those new materials can't still be trusted at the same level and you don't want to be the first to discover in your company that they are acid permeable or burn like a torch when react with some chemical
To let some of your employees work with a lower protection against accidents than other employees, would be negligent and easily prosecutable in court. The non-vegane parents of a vegane killed in an accident would not doubt a second to sue you in this case.
This is a false problem.
Clothes are more than fashion. Leather extracted from dead animals is a big ally against animal cruelty and I'm not trolling. Lets remember why we use it. It saves millions of worker humans from having horrible injuries, painful deep cuts and mutilations.
Could workers rely equally in mycelium for not losing a finger or a leg by a saw if they stumble?
Is mycelium flammable? When I'm using an arc welding torch I want to wear a solid >1mm leather apron. If something goes wrong, leather will save my arms and body from a severe burning. Can filosophy or whisful thinking do the same for me?.
I would not hire a vegan worker if they stubbornly refuse to wear protective clothes arguing that we have pleather that "looks the same" (and burns like gasoline). Would be really irresponsible on my part to hire them.
> on the plus side a leather jacket can last a lifetime, vs polyester throwaway...
100% agree with this