30 Days Starter Set Thermo Steel

The bottle is a lot lighter than I expected, which makes it easy to toss in my bag for work. Having 60 cubes in five flavors means I don't get bored by day three, and the 20-ounce size is perfect for a full afternoon.

I was skeptical about the whole cube thing, but the Thermo Steel bottle keeps my water ice-cold while I'm at my desk, and having 5 flavors means I never get bored. That 60-cube count really did stretch across the whole month, and the bottle's 20 oz size fits perfectly in my car's cup holder.

The set feels complete—the bottle keeps drinks cold for hours, but the real win is having 60 flavor cubes ready, so I’m actually finishing my water each day without getting bored.