Free of BPA, phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals. No-spill nipple which features a cross cut design. The design mimics breastfeeding as it requires your little one to nurse to receive fluid. Anti-Colic nipple helps reduce the incidence of gas and spit up. Unique one piece design eliminates cleaning headaches and tricky assembly. No extra parts to lose. A great way to keep your baby’s liquid hot or cold while on the go!