Most lidded coffee mugs are made from stainless steel (often specified as 18/8 stainless), while a smaller portion are made from stoneware.
Capacities typically range from about 12 ounces up to 40 ounces. Common listed sizes include 12 oz, 14 oz, 15 oz, 16 oz, 20 fl oz, 30 oz, and 40 oz.
Common lid styles include flip-style lids, slider/slide-to-open lids, and snap-seal or snap-close lids. Some listings also note insulated flip lids or purpose-made sipping lids.
Typical insulation features include double-wall vacuum insulation, 18/8 stainless steel construction, and copper-coated inner walls to improve thermal retention.
Many lidded mugs are designed for travel: product descriptions and reviews often note cup‑holder compatibility, travel-friendly lids that allow one-handed use, and carrying handles for on-the-go convenience.