Made Of Stainless Steel . Powder Coated Finish. BevGuard™ Insulation To Keep Beverage Ice-Cold And Carbonated For 24+ Hours. Screw-On Ü-Turn™ Spill Resistant Lid With ColdKey™ Stainless Steel Straw. Simply Turn The Mode Indicator To The Appropriate Position For Stress-Free Sipping Mode To Open Straw And Sip, Leakproof Mode To Close Straw, Or Cleaning Mode To Clean. Leakproof Design. Includes A Rubber Grip That Makes Opening Easy Without Having To Touch The Straw. Comfort Grip Handle. Cup Holder Friendly . Meets FDA Requirements . BPA Free. Hand Wash Recommended .