Best thermal flask hybrid: Klean Kanteen Insulated TKWide, 473ml, £28.95 Best big flask for one : Microlite insulated flask, 1000ml, £40.52 Most stylish flask: Klean Kanteen Insulated TKPro 25oz ...

Xiaomi releases Mijia Light Enjoy Thermal Flask: 316L steel, 500ml, keeps drinks hot or cold for 6 hours, priced at 99 yuan ($14).

A big middle chunk was occupied by the 16-ounce Contigo, unimpressive for the size at 140 degrees; the Hydro Flask at 144 (not bad for a 12-ounce mug); and then three in the sweet spot, the 17 ...

And if you are planning to buy a flask bottle for yourself, we've got you covered with some of the best right here. 4 Flask Options To Try: Milton Thermosteel Optima Flask. Stainless steel, double ...