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Students must still abide by school dress code policy

The 1980 publication of The Official Preppy Handbook (a satirical but culturally accurate guide) brought the look into mainstream awareness and cemented its visual markers

Matteau The Tiered Sundress, $520, shop online at Matteau

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With a tuxedo the jacket and trousers are always cut from the same cloth, but the tuxedo is distinguished by its silk-finished lapels and a subtle silk trim known as a gallon, which runs in a narrow strip down the sides of the trousers

It has a fitted bodycon silhouette and bandagestyle knit that follows the body's curves with soft stretch, helping movement feel natural while keeping a clean line that's easy to wear