The Chicco Well-Being fast flow physiological teat features an advanced anti-colic system that prevents your baby (4m+) from swallowing air, helping to reduce irritability, reflux and colic after feeding. Made of ultra-soft and smooth silicone and featuring ribbed rings for texture, the teat ensures a natural feel while feeding. The softness and flexibility of it helps to reproduce the natural sucking and can help facilitate switching between breast and bottle feeding.