Staying hydrated is more fun with the Thermos FUNtainer stainless steel water bottle. Equipped with a push-button lid and a pop-up straw, it makes it easy for kids to quench their thirst on the go. It's designed with stainless steel and Thermos Vacuum insulation technology to keep their beverages cold for up to 12 hours. | Thermos FUNtainer 350ml (12 oz.) Stainless Steel Water Bottle with Pop-up Straw - Black