Morisons Baby Dreams Comfort Fit Nipple shield is a nipple-shaped sheath worn over the aureola and nipple during breastfeeding. These are made of soft, thin, flexible silicone. In case of flat or cracked nipples use this nipple shield during breast feeding. Special anatomical shape allows maximum skin contact between mother and baby. It is BPA free and completely safe for babies. There is a hygiene case provided to store the shields when not in use.