Kids love thermos Brand FUNtainer products but parents love them even more. the FUNtainer 12-ounce Vacuum Insulated Stainless Steel Water Bottle with Straw keeps drinks cold for up to 12 hours and is a great product to fulfill any on-the-go hydration needs. FUNtainer products are always made with love from BPA-free materials. the double-wall stainless steel construction is built to handle drops, dings and assorted roughhousing. It features a hygienic push button lid with a pop-up straw that is easy to open and comfortable to drink from. To clean you can pop your FUNtainer water bottle in the dishwasher; however hand washing is recommended. Not for hot liquids.