Ion8 release a range of 100% leak proof BPA free reusable refillable insulated stainless steel water bottle/flask. They come in three sizes: 280 / 450 / 500 ml. For this review we were sent the 500 ml version.

For those that don't need, or want a large, cumbersome flask taking up valuable room in their rucksack, this drinking vessel is perfect. The ridged cap opens with just one twist, and the wide mouth provides a smooth, rapid flow.

The ThermoShield double walled vacuum insulated 18/8 stainless steel keeps your drink at the perfect temperature. It allows liquids to remain hot for up to 12 hours, or keeps water chilly cold for up to 24 hours. The bottles stay sweat and condensation free and at the width of a can, 500ml (17oz) fits most cup holders, bike bottle holders and external mesh pockets on rucksacks.

On a slightly cautionary note. If you're using this to carry with you when you go on a run or cycle ride, be warned that the flask's smooth surface can makes it a little slippy, especially if you have sweaty hands. This isn't really suitable to be used as a sports vessel (Ion8 sell plenty of other bottles with non-slip sides) but as it's not being marketed as a sports bottle, you'd have to be a bit of a ninny to buy it for that purpose.

It's perfect for putting in a rucksack and taking with you on long walks, or as a flask to store hot or cold beverages on a picnic or other family days out.

If you're the sort of old fuddy duddy, like me, that can't drink straight out of a flask, you can use just about any plastic cup you have, as they'll slot neatly, upturned, over the top of the bottle.

It's a cool looking handy flask/bottle that is remarkably good value for money.

8

Nick Smithson