NBA Trek Tumbler with Flip Lid

The flip lid really does prevent spills, which is a lifesaver for my morning commute. I also appreciate the double wall insulation keeping my drink cold for hours. This tumbler is a solid buy.

I love that the tapered shape fits perfectly in my car's cup holder—no more spills on the morning commute. The flip lid is surprisingly secure, and having two straws means I can share or have a backup.

The double-wall insulation keeps my coffee hot for a good while, and the tapered shape fits perfectly in my car's cupholder. The flip lid does a decent job preventing spills, though it's not completely leak-proof if you tip it over.