The question is, do you drink enough water? They say you should drink half your body weight in ounces, and personally that is what I go by.
I love this tumbler because it's not too big (It fits in the cup holder in my care), and I can reach my goal without feeling like I have to drink several bottles of water. I know. . I know, it's a mind thing, but it works for me, and it can work for you too.
By the way it keeps your drinks cold for 24 hours and hot for 12.
The Tumbler features “Stay Hydrated” on one side and “Tabata with Cami” on the other