Excellent Thermal Insulation: 20 Oz 304 Stainless Steel Insulated Tumbler With Handle Features Double-Wall Insulation Technology That Keeps Drinks Cold For Up To 12 Hours And Hot For Up To 6 Hours. The Temperature Experimental Data Is Obtained By The Testing Agency To Ensure Reliability. Enjoy Your Drink Anytime, Anywhere! | | Outstanding Leakproof Function: Thick Screw-On Lid, Classic Dual-Purpose Lid Design, Whether You Like To Take A Small Sip Or A Big Sip To Quench Your Thirst, The Tight Silicone Ring On The Top Ensures A High Degree Of Sealing Of The Cup, Making Leaks A Thing Of The Past. When Drinking Coffee You Can Use The Stainless Steel Straw With Silicone Sleeve To Drink Water, Don'T Worry About Touching Your Nose When You Drink Coffee, Healthy, Safe And Odorless. | | Cup Holder Friendly: This Insulated Coffee Mug Tumbler With Lid And Straw Is Designed To Fit Most Car Cup Holders Making It Perfect For Your Daily Commute Or Road Trip. You No Longer Need To Wor.