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The leakproof lid actually holds up — I tossed it in my bag sideways and nothing leaked. Being able to switch between the straw and chug tops without buying a second cup is the part I didn't know I needed.

Swapped the straw piece for the chug lid on a road trip and didn't get a single drip in my bag. Nice that both lid options come in the box instead of making you pick one.

The leakproof lid actually holds up—I tossed it in my bag sideways and nothing leaked. Switching the sipping piece inside the lid takes a second, no fuss. Been using it daily for a couple weeks now.