Small: 16oz
Large: 22oz
Small fits: 16oz beer can glass, mason jars, tall & grande at starbucks, small at dunkin and most local coffee shop cups
For 20oz cups I recommend the small size. The large size fits but since these are for tapered glasses the top will be a little bit big. It still works and looks great but does not fit tight at the top.
Large fits: Venti and larger at starbucks, medium from dunkin, pint cups
These also fit a lot of other cups so just check the ounce size of your cup and order accordingly! Diameter of cup needs to be larger than 3".
Designs are both hand drawn by me and professionally printed :)