Affordable iterations abound on Amazon and at Walmart. The $490 Balenciaga Swift Oval sunglasses that Ms. Kardashian wore to the Vanity Fair Oscars after-party set social media abuzz.

Whether you go futuristic Balenciaga style or 90s all-black, there's a design to suit every face shape – and you'll be in good company. Oval sunglasses are loved by Hailey Bieber, Emily ...

Balenciaga 55MM Square Sunglasses for $200 instead of $490 (take an extra 25% off) ALAÏA 51MM Rectangle Oval Sunglasses for $200 instead of $620 (take an extra 25% off) ...