Lifefactory baby bottles are made of the highest quality, thermal shock resistant borosilicate glass. This allows the bottles to transition safely from freezer to boiling water. The silicone sleeves provide a good gripping surface for little hands and help protect against the occasional drop. Protective medical-grade silicone sleeve provides a tactile non-slip gripping surface and helps prevent breakage. Dishwasher safe, BPA-free and phthalate-free. 4 oz with Stage 1 nipple (0-3 months)
