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The magnetic lid pieces swap out in seconds, which is perfect when I go from my morning coffee to water later. The leakproof seal has survived a few drops in my bag without any spills.

The two-in-one lid design is genuinely handy for switching between sipping with a straw and chugging on a hike. It seals tight enough to toss in my bag without a second thought.

Swapped the straw piece for the chug lid on my commute and it took about ten seconds, no tools needed. The leakproof seal actually holds up when it's rolling around in my bag, which is more than I can say for my last tumbler.