tumbler cup

The listings show two main materials: glass and stainless steel. Several stainless-steel options are specified as 18/8 food‑grade stainless steel.

Capacities range from small glass tumblers (about 10–16.75 fl oz) up to larger insulated cups (around 30–40 fl oz). Example sizes mentioned include 10 fl oz, 12.5 fl oz, 16.75 fl oz, 20 fl oz, 30 fl oz, and 40 fl oz.

Common options include flip‑top lids, drink‑through openings or sip spouts, multi‑function lids that allow sipping or larger gulps, and models that include reusable straws.

Listings highlight portability features like a narrow or slim base, stated car cup‑holder compatibility (base diameter listed), ergonomic handles, and phrases such as “fits into most cup holders” or “fits even more cupholders.”

Many tumblers advertise leakproof or spill‑resistant lids, including leak‑proof sliders, push‑button locking lids, and locking seals. Product descriptions claim these features, though some listings and summaries report mixed real‑world performance.

Most tumblers in these results are labeled for cold beverages. Some stainless‑steel options are specified for both hot and cold use.