No need for a case! Pinch the pacifier to tuck the nipple away to protect it from unwanted surface contact when you and baby are on the go. "Pops when drops" feature is available for 0-3 month size. Designed to hold its position, even when baby plays with it or takes a break. Ideal when paired with a pacifier clip, simply pinch the sides to close it while baby wears it. 100% silicone. No lead, PVC, BPA, latex or phthalates. Dishwasher safe.