We analyzed sales data across thousands of frames to see what real customers are buying — and the distance between runway trends and checkout trends is wider than you'd think.

The gap between runway and reality

Every January, fashion outlets announce the eyewear trends of the year. Oversized shields! Tinted lenses! Geometric wire frames! And every January, most customers buy… rectangles. In black. Or tortoise.

That doesn't make trends irrelevant. But the data tells a more nuanced story about how trends really shape buying.

The top 5 selling shapes in 2026

1. Rectangle — 33% of sales

Still the clear leader. Rectangles suit the widest range of face shapes, move easily from office to weekend, and feel "safe" in a way that helps first-time online buyers commit. The modern rectangle has changed, though: slightly softer corners, slimmer profiles and more acetate colors.

2. Modified oval — 15%

The shape without a catchy name that still outsells most trendy styles. It's a slightly elongated oval with softened corners. It reads as "classic but not boring" and looks good on camera — which matters more now that glasses show up on video calls every day.

3. Cat eye — 11%

The real trend success story. Over the past three years cat eye has gone from niche to mainstream, helped by how well it performs in virtual try-on. The upswept shape gives a lifting effect that's obvious in an AR preview, so customers feel more confident buying.

4. Square — 10%

Square frames appeal to people who want structure without the traditional feel of a rectangle. Bold, but not theatrical — the sweet spot for "I want something different, but I still need to look professional."

5. Round — 8%

Round frames have a loyal following that never wavers. Their share stays remarkably steady year after year. If you like round frames, you always like round frames.

Acetate rules. Plastic and acetate frames outsell metal 2 to 1. Customers want color, texture and visual weight. The thin-wire trend peaked in 2024 and has been fading since.

Tortoise is the new neutral. Black is still #1, but tortoise has closed much of the gap. Brown tortoise, dark havana, honey tortoise — these warm neutrals feel friendlier than black, especially to first-time frame buyers.

Sizes are creeping up. The average eye size of frames sold has grown by 2 mm over the past two years. Not oversized — just a bit bigger. Larger lenses give better peripheral vision and a more modern proportion on today's faces.

What this means for your practice

Stock your best sellers based on data, not trend reports. Keep plenty of rectangles and modified ovals. Add cat eye and geometric styles as your trend-forward picks. And make sure your tortoise and brown acetate selection runs as deep as your black.