SIGGInsulated Water Bottle - Thermo Flask Hot & Cold ONE Brushed - with Tea Infuser - Leakproof - BPA Free - 18/8 Stainless Steel - 10 oz

Great little on the go flask for hot or cold drinks. Easy enough to unscrew and fill up.Found it kept my drinks hot for easily a couple of hours which is more than enough for me to finish my drink for the size of the flask.2 enhancements I see (hence the 4 star). The tea filter thing is some what tricky to get off, its quit thing plastic so worry how long it lasts so could of done with a better design to remove it.The second is the lid, the design is good however the plastic doesn't feel quality so when trying to unscrew the top again I am careful not to break it.So far been using the flask for a few months and have had no leaks or problems.Side note, if you are worried about the lid you Sigg do a more solid hot/cold screw lid for about £5.00

It looks and feels very nice but I am not impressed with the screwing mechanism attaching the top (plastic lid) to the stainless steel body. Screwing is imprecise and rather fiddly to close. Although the length of the thread is about 15mm, the travel distance (lid moving from open to close position) is only 5mm and I don't think that I can trust it not to leak in my rucksack, or the threads gets damaged very quickly. Shame as an old mountaineer I always had Sigg bottles.

Well designed and engineered mechanism that allows for quick one-handed opening and closing.The drink stays piping hot for several yours, well beyond my expectations !The 0.3 lit capacity is a bit small, but I have a couple 0.5 lit ones for when I need them.

I have bought 2 of these, within a few weeks of each other, however within 2 weeks of each other they have suddenly stopped keeping drinks hotliterally, overnight!there appears to be nothing psychically wrong, they are not leaking into the vacuum partVery disapointing, I wouldnt buy or recomend this brand again

Great quality product, robust so far and well thought out. Keeps things REALLY hot, great for chucking in a rucksack for hiking. Only grip is that 'some' reputed beverage vendors supply their drinks in 350ml, this is fractionally too small (300ml) to fit but next size up too big.