I definitely love this small invention by FIFT. How caring they are in thinking of this shirt. Designed by design-duo Katsunari and Ami Igarashi, the shirt look no different than others except a built-in black microfiber cleaner at the shirttail and cuff. Functions as a wiping cloth for your glasses or cell phones, the small black spot is very well position, which still make a nice looking shirt for everyday wear. The design syncs perfectly with FIFT’s mission to promote interaction between their products and the user.