Isosteel Duo

Not only does this flask come with two cups (one at each end), but it boasts excellent heat retention. The folding handle makes it easy to carry and the pop-out stopper allows for trouble-free pouring. Despite its good performance and double cups, its bulk and oldschool appearance put it on the third-place step of the podium. Cup volume: 300 ml (x2) Temp test: 84,7° C (4 hours); 77,5° C (8 hours); 66,9° C (12 hours) R740 at liteoptec.co.za