The Pura Kiki development team took up the challenge of creating the first (and only) 100% plastic-free vacuum insulated Sport bottle on the market and only NonToxic Certified bottle on the planet. Pura Kiki’s 100% medical grade silicone Big Mouth® sport top allows a free flow of liquids while eliminating the dreaded ice shift that often results in a soaked shirt or an embarrassing wet spot in your lap!