The unique design of interchanging sides adopts a zipper with double sliders. On one side, it is a point-to-point, perfectly connected network. The points express the user’s mood of the moment, creating the one and only personal message or symbolic icon as a statement. The user can change the sides of the bag according to his or her current mood, and the user may experience the joy of product design, too. The roll-out design allows the iTURN BAG to be fully rolled out and unfolded as a seat mat, so that the user may have a seat anywhere, at anytime.