Eliminates The Use Of Disposable Plastic Cups and Bottles. Double Wall Construction For Insulation Of Hot Or Cold Liquids. Screw On, Spill-Resistant Lid With Matching 9" Buildable Straw. Small Amounts Of Plant-Based Material Are Used To Create A Flecked Finish. No Indication Of Extractable Gluten In Testing. Meets FDA Requirements. BPA Free. Hand Wash Recommended.