カレッジトレックタンブラー

The flip lid really seals tight—I tossed it in my tote sideways and not a drop leaked. Double wall insulation kept my coffee hot through a two-hour lecture, and the tapered shape means it doesn't wobble in my bike's cup holder. Two straws included is a nice bonus for swapping between iced and hot dr

Took this to a tailgate last weekend and the tapered bottom fit right in the cupholder, which is rare for my car. My drink stayed cold through the whole game, and the flip lid didn't leak a drop when I tossed it in my bag.

The flip lid snaps shut with a satisfying click, and I've tested it upside down in my bag—not a single drop leaked. The double wall insulation kept my iced coffee cold for the entire morning lecture, which is more than I can say for my old tumbler.