Nice and useful flask
I bought one of these ( the green version) from Heinnie several years ago. I have kept it filled with Polish 'spiritus' (almost pure alcohol, with many uses the least of which is drinking) ever since - no leakage or even losses due to evaporation. The flask is well-made, well-finished and robust. It is best suited for alcohol or something similar as it's not huge Overall, it is an excellent product and well worth having. Finally, the predictive text in this review section is really annoying,especially as I have decades of experience as a writer and editor!