USN Commander Blue Cap Same as Cmdr Krause wore in the Greyhound Film

Blue wool officers peak cap with a wire bullion cap badge and officer braid on the peak.

This was worn in WW2 by Commanders while at sea.

This is the same style of cap worn by Tom Hanks when he palyed Cmdr. Krause in the 2020 film "Greyhound" where he was in command of the USS Keeling.