The plaid shirt has been on trend since I was nine years old. I still have all of my plaid shirts from childhood to college. They are old but I have never thrown them away because they're still in style. My plaid shirt is my signature clothing and has been with me since then. This is a long lasting trend that you can wear forever if you know how to wear them right. Although the plaid pattern is classy, it can be used for anything, anywhere and anytime. It's classic and timeless.