Hydro Flask knows insulation. The 24oz Tumbler with Straw in Glimmer Blue keeps drinks cold for hours without relying on a full seal or a screw-top lid. That matters because most open-top tumblers sacrifice temperature retention for convenience. This one holds its chill through a morning commute and into the afternoon, even when sitting in direct sunlight or a hot car.

The stainless steel body feels solid in hand, and the handle is wide enough for two fingers to grip securely. It fits most standard car cupholders without wobbling. The flexible straw lets you sip at any angle, which is useful when you’re driving or reading. At 24 ounces, it’s large enough to reduce refills but light enough to carry one-handed. The leak-proof lid is reliable when tossed into a bag, though it’s not designed for aggressive shaking.

The Glimmer Blue finish is subtle but catches light nicely. It resists fingerprints better than glossy coatings. One limitation worth noting: the straw is dishwasher-safe, but the lid should be hand-washed to maintain the seal over time. If you want a tumbler that prioritizes cold retention and daily usability over novelty features, this one delivers.