There’s a constant battle in the sunglasses arena between oversized frames and ultra-skinny designs. But both extremes find a happy medium in the latest crop of rectangle sunglasses. The trending shape is neither too big nor too small; in fact, it’s just-right-proportions are probably the reason why so many designers—from Off-White to Saint Laurent—incorporated them into their runway looks. It’s a low-key accessory that still has the ability to make a statement, and it’s not just the silhouette that’s catching everyone’s eye. The style is being offered in an array of colors that will make for a joyful addition to your spring and summer wardrobe. Bottega Veneta gives us a pair of lilac lenses, while Gucci delivers a version in a sweet mint green. Discover those and more of the best rectangle sunglasses to shop online, ahead.