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Filled it with ice water before a 6am hike and there was still ice clinking around at 3pm — the double wall insulation is no joke. The four-way pour lid is handy too, though I mostly just chug straight from it.

The leakproof lid actually holds up — I tossed it in my bag sideways and nothing soaked through. Kept my coffee hot from 7am until lunch, which I didn't expect from a bottle this size.

Filled it with ice water before a long drive and there were still cubes rattling around eight hours later. The lid pours from four directions which sounds gimmicky until you're in the car and don't have to twist the bottle around. Zero leaks in my bag, too.