Common materials for reusable mugs include stoneware, stainless steel, and borosilicate glass.
Capacities range from about 10 ounces up to 40 ounces. Many common sizes fall around 11–18 ounces, while some specialty tumblers reach about 40 ounces.
Insulated reusable mugs typically use vacuum or double-wall construction. Stated retention varies by design: hot retention is commonly about 3–6 hours, while cold retention can range from around 8 hours up to about 40 hours for high-capacity cold tumblers.
Reusable mugs may include traditional stoneware handles, integrated handles on large tumblers, silicone or soft-grip bases for added stability, and non-slip features on insulated designs to improve grip and reduce tipping.
Glass reusable mugs often require gentler handling: avoid stacking, use delicate dishwasher cycles or hand washing, and be aware that thinner glass can be fragile and may break if handled roughly.
Retention times depend on design: hot retention is commonly about 3–6 hours, while cold retention typically ranges from about 8 hours up to around 40 hours for insulated cold tumblers.
