Pin dot is a pattern consisting of an array of large filled circles of the same size. Pin dots are commonly seen on children's clothing, toys, furniture, ceramics, and Eastern European folk art but they appear in a wide array of contexts. The pattern also appears in formal contexts, however, and is generally confined to more playful attire such as bathing suits and lingerie. So if you tie this pattern on your shirts, you have two different features like very classical yet playful.
