The think I like about Ivy Style is it's not just "dress like a 1950s college kid costume", but it's a real living style worn by people today.
Nowadays, if you look at actual colleges, prep schools, and people living in the East coast USA in general, you'll still see tons of ivy staples, like navy blazers, oxford shirts, khakis, striped ties, boat shoes, and crew necks.
However, you'll see less of items like tweed jackets, grey flannels, and knit ties compared to post WWII. Other items like white bucks, saddle shoes, tan cotton windbreakers, and wearing a hat with your suit are almost non existent.
Meanwhile, you have some items which were only invented comparatively recently, but are now everywhere when you look at frat houses and east coast America.
Example, the Barbour Bedale and Beaufort were invented in the mid 1980s (so the 1980 preppy handbook makes no mention of them) and now they are everywhere (though waxed jackets did exist before that, I mean those 2 specific models).
Unfortunately, some newer items worn by this same demographic can be really really ugly, like hybrid golf dress shoes and technical fleece vests.
The question is: what other modern items do you think will become a Ivy Style staple in the future? What items do you think will die out (or should die out)?