With the '90s-inspired blowout making a surprising It-girl comeback, it can be easy to forget the eternal appeal of a freshly washed mane left loose to dry in the sun.

Which may be why Blake Lively and her trademark blonde lengths looked so effortlessly appealing in Long Island today, where the actress was the embodiment of unstudied glamour.

Lively strolled alongside her sister, Robyn, with her interminable bombshell lengths showcasing the kind of flyaway texture that can only be attained with a certain straight-from-the-shower dampened wispiness.

The undone styling looked that much better paired with a deep side part and darkened roots for a moment that was as on-point as her crisp white button down and jeans .

Minimal makeup—save for a dab of pink lip balm and sweep of blush—furthered the effect, the overall vibe calling to mind a pared-down Carolyn Bessette-Kennedy .