Made Of Stainless Steel. Powder Coated Finish. BevGuard Insulation To Keep Beverage Ice-Cold And Carbonated For 24+ Hours. Screw-On U-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.