This THERMOS BABY stainless-steel straw bottle is great for little ones (18 months+) who are transitioning from the bottle and learning how to drink from a cup. Freshness and safety go hand in hand, and that’s why this stainless-steel straw bottle features Thermos™ vacuum insulation technology to keep your little one’s drink cold for up to 12 hours. The vacuum insulated stainless-steel straw bottle has an easy-to-grip contoured body that is specifically made for tiny hands. The stainless-steel straw bottle is, of course, BPA-free and, by keeping beverages cold, helps resist harmful bacteria growth. You can pop your THERMOS BABY stainless-steel straw bottle cup and lid in the top rack of your dishwasher; however, washing by hand is recommended. Not for use with hot liquids.