The unique design of the S-Bottle by Difrax is the first to encourage the baby to lie in the recommended natural position whilst the feeding adult can sit in a relaxed, ergonomically sound position. The bottom air valve prevents a vacuum being created when baby sucks and ensures a constant flow of milk. The combination of the unique S-shaped design with the valve means that the baby sucks in less air, which helps to prevent colic, burping and vomiting. The specially developed teat with textured soft finish feels like a mother's breast. The non-spill cap has scales and a soft top for sucking on. The unscrewable base makes for easy cleaning and filling with breast milk frozen into cubes. Handles for the S-bottle can be purchased separately. This bottle comes with a wide teat.