It seems you're referring to a "Mickey T-shirt," which likely features the iconic Disney character Mickey Mouse. Mickey Mouse is a beloved cartoon character created by Walt Disney and Ub Iwerks, and his image is often featured on various merchandise, including clothing like T-shirts.

Mickey Mouse T-shirts are popular among both children and adults due to the character's timeless appeal and association with Disney's entertainment legacy. These T-shirts often come in various designs, colors, and styles, catering to different tastes and preferences.

If you're interested in purchasing a Mickey T-shirt or want more information about specific designs or where to find them, you may want to check online retailers, Disney stores, or other clothing stores that carry licensed Disney merchandise.