Definition of "open-collar" [open-collar]

• Of or pertaining to work that is done from home, especially via the Internet. (adjective)

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• "A: The category you're describing is basically casual menswear that goes beyond sport coats and open-collar shirts or sweaters, the safe haven for legions of men."
• "The Decider appears in the video in a blazer and open-collar shirt against a black background and explains how his book presents the many monumental decisions he has made through his life."
• "Now you're ready to saunter into a trendy restaurant in an open-collar shirt, madras blazer and knee-length pants."