Push-pull cap a bottle and a bottle having the push-pull cap

A bottle formed to be held by a hand having a thumb, an index finger, middle finger, ring finger, little finger, an edge below the little finger, and palm, said bottle comprising:

• an upper cap unit and a lower cap unit, which are removably coupled to each other using an elastic extensible hinge connector;
• a finger grip formed on the upper cap unit;
• a neck part removeably connected to the lower cap unit;
• a chest part formed below the neck part;
• a waist part formed below the chest part;
• a body part formed below the waist part;
• said waist part is recessed inwards to a predetermined depth;
• wherein the chest part is bulged outwards such that the chest part can be held with the index finger, the middle finger and the ring finger of the hand;
• wherein the waist part is recessed inwards to a predetermined depth and has an angled shoulder so that the palm, the edge below the little finger, and the little finger of the hand are placed around the waist part;
• and,
• the chest part has a predetermined size and is spaced apart from the neck part by a predetermined distance such that when the chest part is held with the index finger, the middle finger and the ring finger, the finger grip can be pushed with the thumb.

A bottle formed to be held by a hand having a thumb, an index finger, middle finger, ring finger, little finger, an edge below the little finger, and palm, said bottle comprising:

• a neck part;
• a chest part formed below the neck part;
• a waist part formed below the chest part;
• a body part formed below the waist part;
• said waist part is recessed inwards to a predetermined depth sufficient to accommodate the palm, the edge below the little finger, and the little finger of the hand;
• an upper cap unit and a lower cap unit, which are removably coupled to each other using an elastic extensible hinge connector;
• a finger grip formed on the upper cap unit;
• a lifting means provided at a predetermined position on the lower cap unit corresponding to a position of the finger grip, so that the lifting means guides a lifting motion of the upper cap unit when a user pushes the upper cap unit leftwards or rightwards;
• and,
• the chest part has a predetermined size and is spaced apart from the neck part by a predetermined distance such that when the chest part is held with the index finger, the middle finger and the ring finger, the finger grip can be pushed with the thumb.