Capacities commonly range from about 20 ounces up to 40 ounces, with 20 oz, 30 oz, and 40 oz sizes appearing across options.
Cold retention varies by model: some list shorter ranges like about 9–11 hours, while others advertise much longer iced retention such as “up to 40 hours” or “2 days” iced.
Many models are described as cup‑holder friendly or explicitly list car cup holder compatibility; several product descriptions note they fit most standard cup holders.
Common insulation features include vacuum or double‑wall construction, copper‑coated inner walls for extra insulation, and in some cases multi‑layer (e.g., triple‑layer) insulation to extend iced retention.
Common lid styles include flip‑top lids, drink‑through lids, multi‑position (3‑position) lids, built‑in straw spouts or straw holes, and lids with sliders or push‑button locks.
Tumblers are primarily stainless steel (often 18/8, including some recycled 18/8). Lid components and trim commonly use plastics such as copolyester or polypropylene, and some cups note a copper‑coated inner wall for insulation.