What would you say are effortlessly "cool" styles in 2026 but ALSO classics?

I'm wondering what you would consider to be very "in" styles for this coming Summer (think New England if you must have a setting), but that are also timeless classics?

As an example, I think Linen button-ups are definitely in this Summer, and they are also a classic, so a worthwhile purchase.

If you also can include how you would style it for it to fit perfectly into 2026, I would love that!