Silicone heat sleeve for Travel Cups

These silicone sleeves can provide added heat resistance to the pottery Travel cups. Particularly useful if you take 'black' coffee or tea, or a beverage made with boiling liquid, Or using the travel cup in the microwave. They also aid with gripping the cups, particularly when lifting out of a cup holder. They are 3in/ 8cm in diameter and stretch to for the Grounded Pottery Travel Cups.