coffee flask

The listings show stainless steel as the primary body material. Several items add a PU leather wrap or sleeve, soft-touch rubberized finishes, and lids made of plastic or metal.

Several bottles are double-walled, vacuum-insulated stainless steel and are described as keeping beverages hot for about 11–12 hours and cold for up to about 24 hours.

Some insulated bottles include a removable two-part stainless-steel infuser or strainer that can hold loose-leaf tea, tea bags, fruit, or herbs; one design emphasizes an extra-long infuser for deeper steeping.

Smaller pocket flasks are listed around 5.25 inches high and 1.0 inch wide, while insulated travel bottles and tumblers commonly measure about 7.95–8.26 inches high with widths around 2.83–3.07 inches.

Listings highlight roughly 16 fl oz (or similar-sized) insulated bottles as fitting most car cupholders; one 16 oz description explicitly notes cupholder compatibility.

Warranty information varies: some items list a 1 Year Limited Warranty, while others show a Lifetime Limited Warranty or a limited lifetime guarantee for U.S. & Canada.