• VACUUM INSULATED: Keeps liquids cold for up to 24 hours iced
• SAFE: only 100% plastic-free bottle on the market; only  bottle on the planet. Insulated with a certified lead-free seal. 
• Baby Grows...Bottle Evolves™: This bottle easily converts into an infant bottle, sippy bottle or sport/water bottle by simply swapping the Big Mouth Sport Top out for another 
• Zero Plastic… Zero Yuck™: Bottle and collar crafted from safe, anti-bacterial, 18/8 stainless steel and medical grade silicone
• Pura Silicone Big Mouth® sport top crafted from 100% medical grade silicone
• BPA/BPS-free and will not leach toxins like plastic sport tops, bottles, or lids
• Big Mouth® Sport Top is not designed for hot liquids
• Medical grade silicone bottle sleeve
• Hand wash recommended