Sunglasses are very personal. Everyone has a pair, and usually, they talk about that person's life and style. Someone who spends a lot of time on the tennis court probably has a pair of black, sleek, and sturdy sunglasses that look athletically fit.
Someone in the design might wear chunky white sunglasses to complement their neutral hue. Everyone has their own style of sunglasses that they like more than others.
Affordability can play a key role in selling sunglasses when you also consider how easy it is to get damaged or lost. It's important to learn how to display your sunglasses, whether in a store or socially.