I couldn't be happier with my 1-Litre Motivational Water Bottle. Before purchasing this bottle, I rarely drank water. The time tracker on the side of the bottle is extremely motivational and has enabled me to meet my water-drinking requirements each day. Not only that, purchasing the bottle comes with a downloadable e-book containing healthy drink recipes! The team at KOBONA seriously know what they're doing. Can't recommend this bottle enough. Thank you.