Premium: This Insulated Tumbler With Straw And Handle Is Made Of High Quality 18/8 Food Grade Stainless Steel That Makes It Sturdier, More Durable, And Ensures The Cup Remains Odor-Free. This Travel Cup Was Made To Take Everywhere. | | Insulated/30 Hours: This Stainless Steel Cup Will Keep Your Drinks Cold For Up To 30 Hours, And Hot For Up To 12 Hours Using S Double Wall Insulation Technology. This Technology Also Makes The Insulated Tumblers Sweat Free! This Makes It The Perfect Tumbler With Lid And Straw. | | Spill Proof Lid Straw: Our Stainless Steel Tumbler With Handle Features A Spill Proof Lid Making The 40 Oz Tumbler Ultra-Portable. Let Spills And Leaks Be A Thing Of The Past. Additionally, The Non-Slip Rubber Base Prevents Sliding And Scratching Along With A Sleek Modern Tumbler Look. | | Fits Cup Holders: This Insulated Cup With Straw Can Be Used As A Travel Coffee Cup Or Water Tumbler And It Fits In Most Cup Holders! This Thermal Cup Is.