I love this bottle! I use it all the time for the gym, playing football and just in the office at work. The tracker has definitely worked encouraging me to drink more water (which I was rubbish at before) and the colour blend looks amazing! The bottle is the perfect size that you can hold comfortably while the opening at the top is enough to guzzle as you wish without pouring it all over yourself. Overall this is really stylish and well made, HydrateM8 never let me down with their quality!!!!