Chicco Silicone Nipple Shield Large Size are designed especially to Cover and breastfeed your breasts longer. Allow optimum contact between the baby's nose and chin with the breast skin maximizing tactile and olfactory feelings.It is carefully designed to fit the child's mouth and ensure correct, evenly distributed pressure of the tongue against the palate, moreover reduces the risk of sids.chicco pacifier is the best silicone nipple.