SAFE: Only 100% plastic-free stainless steel bottles on the market; only Made Safe Certified bottle on the planet Zero Plastic… Zero Yuck: Bottle and collar crafted from safe,18/8 stainless steel and medical-grade silicone Pura Silicone Big Mouth sport top crafted from 100% medical grade silicone SIMPLE: Single wall construction is lightweight, dishwasher safe, and shatter-proof. No seal, no dot, no lead!  BPA-free, BPS-free, PP-free, Polypropylene-free, phthalate-free and will not leach toxins like plastic bottles and lids because our products do not contain any plastic! 100% medical grade silicone bottle sleeve Lifetime warranty on stainless components Big Mouth Sport Top is not designed for hot liquids