The Bag Cups is an insulation cup designed with pen cap as the inspiration. The using object of the product is face to the business office crowd. It has two size and variety of different colors of choice, the slim shape into the briefcase or the hand-held Bag does not take up too much space, the bottle clip allows makes the cup to not easily fall down. The lid is food-grade PP material and food-grade silicone to meet the hygienic standard. The bottle body clip use the ABS material which is safe, non-toxic and sanitary. The inner surface of the compact stainless steel cup body is non-toxic and food-grade nano-coating.