Collegiate Trek Tumbler

Took this to the stadium last Saturday and the tapered bottom slid right into the cupholder armrest—no wobbling even on the bleachers. Double wall insulation kept my iced tea cold through the whole fourth quarter, and the flip lid never leaked when I tossed it in my bag.

The flip lid seals tight enough that I tossed it in my tote bag without a second thought, and not a single drop leaked. The tapered shape is a genius touch, too—it slides into my cupholder on the way to work every morning without wobbling.

This tumbler fits perfectly in my car's cup holder without wobbling, which is a huge win for my morning commute. The double wall insulation keeps my iced coffee cold for hours, and the flip lid hasn't leaked a single drop in my bag. Two straws in the box was a nice surprise too.