Review on RTIC Lowball Tumbler With Splash Proof Lid, 12 Oz, RTIC Ice, Insulated Travel Stainless Steel Coffee Mug, Sweat Proof, Keeps Hot & Cold Longer by Tyler Turner

First of all, it does not keep the hot drink for 6 hours, as it has been posted. For me, it is more like less than 2 hours with open the lid two times in the duration.The lid is extremely difficult to open. One would risk spilling hot liquid trying to open it to pour out liquid.And why would one needs to open the lid to open? Because the pouring our through the opening of the plastic lid will result dribbling down all over the table. This is very annoying and disappointing for me, since I plan to drip coffee into this RTIC lowball to keep coffee warm and pour out coffee for drinking.