Made Of Stainless Steel. Powder Coated Finish. BevGuard Insulation For Keeping Your Drink Cold For 24 Hours And Hot For 4 Hours. 100% Leakproof. Screw On, BevLock Tritan Spill-Resistant Lid. Left And Right Hand Friendly. Non-Slip Base. No Condensation. No Metallic Taste. Meets FDA Requirements. BPA Free. Hand Wash Recommended.