“The lids fit the cups that I bought from a bar with their logo on them. They fit in the cup however the lid slowly backs itself out of the rim. I thought it might have been the carbonation from the soda but after it doing the same thing with cold tea in the cup I realized that it’s just the design and that means that it will not function for anything more than a lid that keeps dust out- do not tip it over after it sits for awhile as the lid will come off and the liquid will spill out.”