Made Of Stainless Steel. Powder Coated Finish. BevGuard Insulation For Keeping Your Drink Cold For 24+ Hours And Hot For 6+ Hours. Screw On, BevLock Spill-Resistant Lid With MagFlip Technology To Keep Your Lid Open While You Sip. 100% Leakproof When Locked. Easy On & Off OctaLock Threading System With 8 Different Drinking Positions. Durable And Removable Color-Matched Silicone Body Sleeve Protects Against Drops, Dents And Dings. Left And Right Hand Friendly . Scratch-Resistant And Comfort Grip Handle . Cup Holder Friendly. No Condensation. No Metallic Taste. Meets FDA Requirements . BPA Free. Hand Wash Recommended.