Who actually GAS besides the monkeys at the zoo throwing it?!?
Over here we had a Brand of vacuum sealed containers called Hydro-Flask... Same principle, but the was the weakest link to keeping stuff hot or cold... The screw on cap that came with it was the best and no-leak, but the flip
tops lids and straws were convenient and leaked if it fell over or tipped...
I can finish 64oz in about 2 sips... I may just get a refrigerator and keep it in the cab.....
