The water bottle is BPA free and odorless, made of BPA-free food-grade organic silicone, passed LFGB, SGS and as obtained FDA certification, to ensure safe drinking, no PVC, latex, phthalate and plastic smell, etc. odor. It is safe and hygienic, because it uses a food-grade liquid silicone bottle and a food-grade plastic cap,children can also use it with confidence.