three ice intentional functional suit buttons Take out comprehensive common sense
Tailors of Distinction - Whether they are are functional or not, a suit jacket will have buttons on the sleeve. A suit jacket with sleeve buttons that come undone (surgeons cuffs) is
Differences Between Decorative And Functional Buttons In A Suit
What are surgeon cuffs? [and when to wear them] - Bespoke Edge
Different Styles of Jacket Sleeve Buttonholes - Henry A. Davidsen