Premium Material, 100% plastic free Made of 100% BPA-free food-grade silicone, que Bottle is 100% plastic-free, making it safe for people and the planet. Unlike metal or plastic containers, silicone WILL NOT change the taste of your water. It`s the water bottle that has the best qualities of glass and metal, with the added benefit of being flexible, light, and shatter resistant.que Bottle is lightweight and compact, taste and odor free, stain and bacteria resistant, dishwasher safe, and leakproof.que Bottles are the only collapsible water bottles that are functional and fashionable. Its unique spiral design compresses bottles into half size without compromising the good looks. que Bottles can easily fit into virtually any bags, making them perfect for traveling, outdoors and everyday life.