At least once a year, the same debate resurfaces in fashion: Are Birkenstock sandals "in" or "out"? But for those who truly understand effortless style, the answer remains a hard yes. It's time we collectively acknowledge that these iconic sandals, known as the Arizona and worn by the likes of Ashley Olsen, Kendall Jenner, Kaia Gerber, and Gigi Hadid, aren't a fleeting trend but a time-tested classic that deserves a permanent spot in any wardrobe. That said, how you style them matters. In 2026, breathing new life into these flats comes down to pairing them with elevated basics, as Olivia Munn recently demonstrated.

While stepping out in New York City this week, Munn served up a master class in relaxed, off-duty dressing. She was spotted wearing Birkenstock Arizona sandals styled in an Olsen-coded fashion—with socks. To balance the casual footwear, she paired them with straight-leg denim and a crisp white T-shirt.

(Image credit: Backgrid)

On Olivia Munn: Birkenstock Arizona Sandals ($155)

Though Birkenstock sandals may have taken a subtle back seat in recent seasons, their legacy is far from over. This practical yet stylish silhouette continues to prove its versatility, seamlessly transitioning between seasons and proving that true functional design never goes out of fashion.

Keep scrolling to shop the Birkenstock Arizona slides plus chic straight-leg jeans and white tees to pair with them.

Shop Birkenstock Arizona Sandals

Birkenstock Arizona Birko-Flor Slide Sandal

Endless styling possibilities.

Birkenstock Arizona Soft Footbed Slide Sandal

The most popular style and colorway.

Birkenstock Arizona Soft Footbed Slide Sandal

I love the lived-in brown leather.

Birkenstock Arizona Birko-Flor

If most of your wardrobe is black, this pair is for you.

Birkenstock Arizona Genuine Shearling Slide Sandal

So cozy.

Birkenstock Arizona Big Buckle Slide Sandal

The big gold buckles are so pretty.

Shop Jeans and T-Shirts

Nordstrom Pima Cotton Blend Crewneck T-Shirt

Who What Wear readers love this tee.

J.Crew Jesse Relaxed Straight Jean

The wash and fit are both perfection.

ZARA Short Sleeve Interlock T-Shirt

I'm re-creating this entire look ASAP.

Levi's 723 Straight Jeans

Dark-wash denim is dominating again this fall.

We The Free Atlas Crew Tee

I heard that this tee fits really well.

Ruadh The Olympia Jean

Just added to my cart.