Final answer:
Safety boots or chemical-resistant boots feature quick-release fasteners or elasticized insets to allow speedy removal if any hazardous substances get into the boot itself.
Step-by-step explanation:
The type of boots that feature quick-release fasteners or elasticized insets to allow speedy removal if any hazardous substances get into the boot itself are safety boots or chemical-resistant boots.
These boots are commonly used in industries where workers may be exposed to hazardous chemicals or substances, such as laboratories, manufacturing plants, and construction sites.
The quick-release fasteners or elasticized insets allow the boots to be easily removed in case of an emergency or if any hazardous substance enters the boot, minimizing the risk of contamination and injury.