BUBA PROTECTOR SILICONE ULTRAFINO 09725. When you're out and about with your little one, you know that no matter how careful you are, something is sure to happen. Whether it's a spilled drink or a bump in the street, accidents happen. That's why Buba offers a silicone protector case for mothers! The soft, flexible silicone case fits snugly over your breast and helps protect them from everyday bumps and bruises. Plus, the case has cutouts for both nipples so they're always fully supported.