The groundbreaking & innovative Marcus & Marcus Silicone Bottle, which mimics more than any other bottle, maternal breastfeeding and the habit of alternating between the natural breast and the feeding nipple. Thus, the baby easily accepts the feeding without discomfort. With a 50% Incline for ease of body posture and you take control of the Flow as you adjust the bottle's body with the gentle squeeze of the soft Silicone. Portable, self-sufficient, made entirely from Soft Medical Grade 100% Pure Platinum Silicone FDA purity. It can alleviate the mother's anxiety about not losing even a drop of her breast milk, how to store it, and how to easily feed her baby without changing from bottle to bottle or storage bags.