Soft, flexible shield: Our shield technology lets this soother follow the natural curves of your baby's face, meaning fewer skin marks and less irritation on their cheeks Rounded shield: Our rounded shield minimises pressure on baby's cheeks for extra gentleness to the skin while suckling BPA Free: Our Philips Avent Ultra Soft and Ultra Air Teats are made from 100% food-grade silicone and come free from hazardous chemicals and substances like BPA and allergens Natural oral development: Our orthodontic, symmetrical soft silicone teats are designed for natural oral development Natural feel for baby: Natural, comfortable feel for baby with our textured silicone teat that's designed to mimic the feel of mum's breast