Across the listings, insulated tumblers are most often made from stainless steel and various plastics (some specifically list polycarbonate). A few descriptions also mention ceramic components. Materials vary by model and by which part of the tumbler (body, lid, or trim) is being described.
Capacities vary widely. Common sizes reported in the listings include 16 fl oz, 30 fl oz, 40 oz, and 50 oz, with several options available across that range.
Common accessories include lids (sometimes multiple lid options) and reusable straws. Less common extras noted in some listings include charging coasters or built-in add-ons like a chapstick holder or key ring. Included accessories vary by model.
Many tumblers have tapered bases to fit most standard cup holders, and some include handles or protective rings to improve grip and stability while carrying.
