The present invention relates to a bottle having improved duality structure and improved warmth and washability combined with an optimal feeding angle guiding function. It incorporates angle adjuster for body angle, which helps to adjust an appropriate angle (45 degrees) And can be used as a kicker. The double structure having a space between the inner body and the outer body can further enhance the warmth, and the groove can be formed in the middle portion of the body to improve the grip feeling. So that it is easy to clean, thereby solving the problem that the existing smooth feeding angle is set and the washing and heating are not easy.That is, the present invention relates to a nipple having a structure in which a hole can be opened so as to allow a smooth aspiration action in a feeding bottle and to prevent colic during the inhalation action, a donut shape which can connect the body of the nipple with the bottle A combination ring, an angular correction tachometer that helps to adjust the proper angle (45 degrees) when feeding on the body, and a V-shaped protruding part from the side of the ring so that it can be used as a separator from the body, It can be disinfected with hot water and has a space between the inner body and the outer body. It is possible to increase the warmth by the double structure. In the middle part of the body, the outer body of the bottle, which is formed as a cylindrical PPSU material, It is made of silicone material that can be separated from the body and is easy to wash and warms up. And a lid that is similar to the lid of a conventional bottle to protect the nipple.Accordingly, the present invention can be used to adjust an angle (45 degrees) when feeding a mammal by attaching an angle correcting foot to the body, which can also be used as a chiropractor separately from the body, It is possible to increase the warmth by the structure, the groove is in the middle part of the body, and the grip can be improved. Since the inner body ca
