I love these Tervis Tumblers. They don't leave rings and "reduce condensation". They've been around for forever. I have the set of mugs with handles and I love them. You can get tops for them. They sell them all over, just look for them. I don't know who invented putting a patch between the layers of plastic and sometimes the patches themselves can be just plain ugly, but they are super functional. Most seem to be beach or collegiate themed. I have also noticed that they now produce company logos for corporate gifts and such. But the cup itself is my favorite part. They are lightweight, dishwasher friendly and much more.