Our shatter-proof glass bottle with premium, soft-touch silicone finish offers added safety for baby and extra comfort for you. Made to last, the bottle's baby-safe borosilicate glass is scratch and stain resistant and doesn't release any harmful substances. Plus, its innovative easy-grip silicone coating helps prevent drops and breaks, while also being velvety smooth to hold. The glass wont absorb smells or flavors from the milk The glass won't shatter if it breaks when dropped Designed to help reduce nipple confusion, and make switching from breast to bottle and back again, easy 95% of babies accept a Tommee Tippee bottle* Built-in anti-colic valve thats proven to reduce air intake Self-sterilizing in 3 minutes in the microwave BPA, BPS and Phthalate free Dishwasher safe *To verify, please visit the Amazon product page