Ninja Thirsti Water Bottle and Flask 530 ML With Leak-Proof Lid, Designed For Carbonated, Hot & Cold Drinks. Ideal For Travel & Sports, Triple Insulated, Stainless Steel Bottle, Grey, DW1801EUUKGY

I have bought so many drink flasks for hiking, travelling and just regular day use. But this is buy far the best I have owned to date.It keeps your drink ice cold for hours when placing ice cubes inside. It keeps your hot drinks warm for all day use also.The bottle is so easy to keep clean. I use this daily and not having to clean a straw is a bonus. The cap is easy to tighten and loosen. It looks very durable.The bottle is smart looking. Its easy to hold also and the carry handle comes in handy.It fits in my cupholders as its slim.It doesn't wobble about not is it easy to knock over when full or empty as its completely flat underneath.If I could rate this above five stars I would. I guess the only downside is the price and availability. I got this on offer for £20 but I really want other colours that cost over £30 and take months to arrive. But you do get your value for money. They are worth every penny!

I have only been using this bottle for 2 days at this point, but I have to say, it's better than my other more expensive 1's that were hard to clean.This bottle is extremely well made, the top screws on without any difficulty, the drinking part has it's own screw top that stays connected to the lid so you can't lose it, it only takes a couple of twists and it's sealed tight again after drinking with zero leaks. The top of the bottle removes to leave a wide neck that makes this a breeze to clean, no having to mess about with long brushes.The colour is very nice, I got the grey and it's a nice quality to hold and doesn't succumb to oily marks keeping a clean look all day.I have only used it for still water (specializes in carbonated) so can not comment on if it keeps things fizzy, but it definitley does keep water cold for 18 hours plus and that's without adding ice.In summary, very happy so far and will buy again if and when this 1 loses it's chill :-)

Really great bottle, looks nice and has a useful handle at the top of the bottle. Only used for cold drinks but can also be used for hot drinks. It is excellent for fizzy drinks as they remain fizzy. The bottle also keeps liquid cold adding ice is great as the cubes remain in the bottle for 24 hrs keeping the drink colder for longer. It is pricey but well worth it .

This thing is amazing. I've been looking for a flask that I can put a pint of beer in and keep it cold and fizzy on a journey with no leakage. Well this thing works perfectly. I got the 700ml version and put 2 bottles of 330ml beer in it and went on a trek. Well not only was each sip ice cold and fizzy, but it kept that way for ages. I left maybe a third of the drink and tried it again 10 hours after I initially put it in the flask and it was still cold and still fizzy. It had warmed very slightly and lost a bit of carbonation, but for 10+ hours it was insanely good. The flask works as advertised, and in my opinion is worth the premium price. I did get a nice discount for prime day, but if I lost mine I would replace it at RRP without hesitation.

I’ve purchased this in both sizes. I use the large one for cold water on my bedside table, if you put plenty of ice in it will keep the water cold with chunks of ice still present for two nights. I have tested the smaller one for many hours with hot drinks as I don’t need to keep those hot for so long.The innovative design means the screw top can never detach from the bottle and get lost. Theyre very sturdy and have stood up to the dishwasher several times so far.One star off because they’re substantial and a bit on the weighty side, also not entirely convinced about the claims for keeping the fizz in fizzy drinks. This seems to depend on the smooth interior of the bottle but as soon as you put ice in it that smoothness is negated. Maybe it works with a fridge cold drink and no ice.All in all a good buy. Ninja quality comes through.

Very stylish.A little expensive, but that's what you pay to have Ninja as a brand.Keeps drink cold for ages. Not tested a hot drink yet.Very durable.Lovely colour. Easy to fill, and easy to drink from.Good capacity, especially for it's size.Simple to clean.