These impervious boot covers are constructed with our durable SlipGuard soles and tops made out of our unique fluid-resistant and breathable microporous LiquidGuard material. They provide a breathable yet impermeable barrier for workers against wet and dry hazardous and non-hazardous contaminant particles including lead, asbestos, paint, mold, dust, fibers, and grime and are especially effective where dirt, grime, splashes, sprays, and spills exist.