Amazing bottle ! Keeps my drink cool all day, I’ve found best thing to do is put 10 - 20 ice cubes (I work outdoors all day, been in the sun last couple of months!) in the bottle in the morning & just keep filling it up with water throughout the day, depending on how much I use it my ice cubes hang around for about 4-8 hours! Keeps my drink so cool I love it sooooo much!! Only reason it’s not 5 stars is because it scratches very easily - on the first day it scratched on the side of the bottle and also at the top where you tighten the lid. But can’t fault the quality of it, genuinely revolutionised the way I drink whilst on court coaching!!!! Tempted to buy a smaller one for my coffee in the winter, don’t think a litre of coffee would be good for me 😂