코스탈 카우걸

Finally a tumbler that fits my car's cup holder without sacrificing capacity. The 20oz is perfect for my commute and the leakproof straw genuinely holds up when I toss it in my bag sideways.

The circular flip straw is such a game changer—no more hunting for a cap or dealing with a gross open straw in my bag. I've tossed it sideways in my tote with the straw down and not a single drop leaked. Fits my car's cup holder perfectly, which makes it my new daily driver.

The circular flip straw is such a clever design—no more hunting for a separate lid or straw when I’m driving. It’s been totally leakproof with the straw down, and the 20oz size slides right into my car’s cupholder without wobbling. Exactly what I needed for daily errands.