Awesome product for long distance trail training runs not big and bulky.

It has the usual foul taste when new, but this soon disappears. Curiously, there are volume markers, which can’t be read on a black (non-transparent) flask, or one stored in a vest, but that’s neither here nor there. No issues with leaks so far.

Good sized bottle to put in your belt for middle distance runs.

Nice bottle but it leaks when held in the hand and running however if you have a vest holder for water bottles it would work better.

Fits into running vest/ kayak lifejacket easily. Easy to fill and not to big and bulky.