?Material?Premium Stainless Steel Tumbler Is Made From Durable Stainless Steel With Double-Wall Vacuum Insulation To Protect Your Hot Or Cold Beverage At All Costs. | | ?Double-Walled Vacuum Insulation?Prevent Heat Transfer To The Outer Walls Of The Tumbler,You Never Burn Yourself Again. Super Insulation Technology Keeps Your Drinks Hot For Over 6 Hours And Cold For Around 8 Hours.You Can Enjoy Your Hot Morning Coffee Or Cooler Drinks! | | ?Perfect Size?Our 12 Oz Travel Mugs Fit Under Popular Single-Cup Coffee Makers. With It Is Compact Size, Our Modern Coffee Tumbler Fits In Most Vehicle Cup Holders While You Commute To Work Or While Running Errands. This Coffee Flask Can Also Be Used As A Tea Mug And Are Great Coffee Mugs For Men And Women. | | ?Designed?The Shape Is Tapered Designed Cup Lid Water Outlet Switch,Streamlined Cup Body Double-Layer Design,Thickened Non-Slip Design At The Bottom Of The Cup.The Airtight Design Provides You With A Cup Of Fragrant Hot Tea During Yo.