Business Casual

What is business casual?
I've spent weeks in olive green pants
that turn into capris.
I've been covered head to toe in mud,
had fingers too frozen
from sporadic snow in May.
I've sweated on black liner
in the unforgiving desert sun.
I've shot the shit with drillers,
talked about the man
swore like a sailor,
split hard rocks with hammers
carried loads of core.
I've off-roaded on the mine roads
drove pro on the left side.
I've been donning hardhats,
reflective vests, steel-toed boots.
Worked 12 hour days.
how could business casual
fit this in a suit?