The bottle leaked during first use itself!
Nice simple design
Good value basic flask
Purchased this as an alternative to a larger 1 litre version for shorter trips. It was also to replace a similar sized steel flask (bought from Tesco) that had only lasted about 9 months before the spring loaded cap broke. This one has a solid well made cap/stopper with a good seal and good threads to tighten down - No leaks. Pre-warm it first, fill it to the top with no air gap and it will keep drinks warm for a full day. Really well made and won't break. - Get one!
Robust, good stopper, easy to transport
This flask worked well. On a recent expedition the flask Kept fluid hot all day then when refilled and left overnight was still warm in the morning, even though temps outside the tent were below 0 celcius.
worked better than described