Thermal insulating jackets have a special "fluted" design, which allows the jacket to open (like a tulip) to fit any size cup. Environmentally friendly material comes in five colored designs as shown in inset photos.
The patterns shown (in order) are called "Aroma II, Cheerful Green, Ebony, Ivory, and Kraft." Please select when ordering. Thermal jackets come 1000 to a case.