The most common materials are porcelain, paper (insulated disposable cups), and stainless steel (insulated travel tumblers).
Dimensions vary by style and shape. Heights in the available listings range roughly from about 3.25 inches up to about 9.65 inches, while widths (diameters) range from about 2.83 inches up to about 5.25 inches. Check the product page for exact measurements for a specific cup.
Features that improve temperature retention include double-wall vacuum insulation, copper-coated or copper-lined insulation layers, and multi-layer or triple insulation in some tumblers.
Practical features include matching saucers for porcelain cups, easy-to-carry handles, built-in coasters, and rounded or tuck-away handles that improve portability and make serving hot drinks safer in cold conditions.
Some larger porcelain cups are sold in gift-ready packaging and are described as suitable for holiday or special-occasion gifting.
