"• 100% Plastic-free & only Non Toxic Certified bottles. • One Life, One Bottle concept. Bottle can be converted into a straw, Sippy or small water bottle by swapping with another Pura Silicon lid. • Double-wall vacuum insulation keeps beverage cold up to 24 hrs. with ice/8 hrs. without iceFood grade #304 (18/8) stainless steel and medical grade silicone contains no BPA, BPS, EA, PVC, phthalates, or other toxins and no internal lining to ensure nothing ever leaches into your beverage Includes soft silicone travel cover, bright-colored SWIRL sleeve and medium flow nipple with anti-colic vent tube • #304 stainless steel & Medical Graded Silicone accessories. • Internal marking makes you measure child's milk or other beverages. Each ounce (appx. 30g) is marked & visible at a glance inside the bottle. The Pura Kiki INSULATED Infant Bottle features a double-wall, vacuum insulated, food grade stainless steel bottle (18/8); medical grade silicone components; and zero plastic parts! The included Natural Vent Nipple features a one-piece anti colic venting tube that stabilizes pressure in the bottle for continual feeding and a wide shape for a more natural latch. Each bottle has pressed internal volume marks that can be clearly viewed on the inside of the bottle for easy measuring. All bottles are compatible with silicone components from Pura including our Natural Vent Nipples in various flow rates, silicone XL Sipper Spout, Silicone Straw, sealing disks, and Big Mouth sport top. The bottle is also compatible with nipples and spouts from other brands. With Pura you can rest assured that you are always using the safest and most eco-progressive bottle on the market. One Life...One Bottle. Exclusively Imported by Montyybucks Inc. General Instructions: Wash before first use. Boil for 5 minutes to sterilize. Remove the sleeve from the bottle at least one time per week to clean between the bottle and sleeve, more often in humid climates. Dishwasher safe. How to install sleeve: Add baking soda to the inside of a dry sleeve then slide onto the bottle. Rinse thoroughly. OR At the sink, spread a pea-sized drop of liquid dish soap inside the sleeve then slide the sleeve onto the bottle. Rinse thoroughly."