Philips Avent Nipple Protector made of ultra-fine, soft, odourless, taste-free silicone that protects sore or cracked nipples during breastfeeding. Philips Avent Nipple Protectors are only designed for use when you have sore or cracked nipples and should be used with health professional advice. Your baby can easily latch on through the shield and create a seal. The nipple protectors are made of an odourless, tasteless ultra-fine silicone. Your baby can still feel and smell your skin and continue to stimulate your milk supply while suckling, and will return easily to the breast once your nipples are healed.