Made Of Stainless Steel With Silicone Body Sleeve. Powder Coated Finish On Stainless Steel Material . BevGuard™ Insulation For Keeping Your Drink Cold Or Carbonated For 24+ Hours. Screw On, BevLock™ Spill-Resistant Flip-Top Lid With MagFlip™ Technology To Keep Your Lid Open While You Sip. Easy Carry Handle On Lid . Push Button To Pop Lid Open. Features Removable And Interchangeable SoftSip™ Straw And ColdKey™ Stainless Steel Straw. Either Sip Through The ColdKey™ Straw Or Chug From The SoftSip™ Straw. Remove Straw For Quick And Easy Cleaning . Durable And Removable Silicone Body Sleeve Protects Against Drops, Dents And Dings. Cup Holder Friendly . Non-Slip Base. No Condensation . No Metallic Taste. Meets FDA Requirements. BPA Free. Hand Wash Recommended.