New Delhi, March 30 -- The camp collar shirt, crafted in breathable fabrics and saturated with vibrant prints, is long known for being a summer vacation essential. In fact, it was first introduced as a holiday alternative to formal tailored shirts in the 1950s and named for their flat camp, or Cuban, collars. Today, however, several male celebrities are wearing camp collar shirts to work.

Australian racing driver Daniel Ricciardo, for instance, was recently spotted at events wearing a camp collar shirt in many variations-from a silky bowling style to a knitted striped version. So were Jacob Elordi, Harry Styles and back home, Ranveer Singh. Seeing the rise in interest, luxury brands like Canali, Gucci, Fendi and Armani, as well a...