Costume Dept. is a designer that wanted you to have these fun choices so that leggings aren't an afterthought in the accessory department. These are limited-edition leggings, so don't hesitate. There isn't a black pair in the lot!
Implications - Exclusivity and personal pizzaz are two elements in the business world that automatically increase consumer interest in a product. Attaching the words "limited edition" to a unique design is a surefire way to increase sales in a world where people's sense of individuality is slowly dwindling and prestige is highly valued.