Since it is not a brand, it is actually an English word. This English means that this brand has only been established for a few years. For example, since 1999 indicates that this brand was founded by 1999. If you see since 1998 in the book, it means that this book was published by 1998.

Since it's KOOL brand clothing. KOOL was founded in 1963, adhering to the simple and elegant European style, and its design concept comes from European orthodox men's wear. KOOL respects a kind and easy-going attitude, optimistic and free psychology, optimizes a lively lifestyle, respects men's pursuit of career ideals, and keeps in mind the importance of quality of life.