The double-breasted front reads as costume until the first busy service, and then it reads as engineering.
A second layer where it counts
The overlap doubles the cloth across the chest — exactly where steam and splash arrive.
That is insulation you wear without noticing, until the moment it earns itself.
The mid-service swap
The front re-buttons the opposite way, so a stained panel folds under and the clean one faces out.
Thirty seconds, no coat change, presentable at the pass for the second seating.
Why the buttons are covered
Cloth-covered knots survive the industrial wash that melts plastic, and they have no hard edge to chip a plate at the pass.
Removable studs do the same job and come off for laundering entirely.
What it is not
None of this makes a coat protective equipment. It buys reaction seconds, and that is the honest claim.
Anyone selling a chef coat as PPE is selling something the garment cannot do.