NBA Trek Tumbler with Flip Lid

The double-wall insulation really works—my drink stayed ice-cold through an entire afternoon of errands. The tapered shape fits perfectly in my car's cup holder, which is a huge plus for daily use.

I was a bit skeptical about the leak-resistant claim, but after tossing this in my bag with ice water and not a single drip, I'm totally sold. The double wall insulation actually keeps my drink cold for hours without sweating on the outside.

The tapered design fits perfectly in my car's cup holder, and the flip lid has saved me from a couple of spills already. I love that it came with two straws, so I always have a backup when one gets lost.