Marvel 蛋白質搖搖杯

I was pleasantly surprised by how well the built-in agitator works—my protein powder mixes completely smooth without any clumps. The lid seals tight enough to toss in my gym bag without worrying about leaks.

Finally a shaker where the agitator actually gets rid of all the clumps without me having to shake it for two minutes. The lid seals tight enough that I can toss it in my gym bag without any worry.

I've spilled plenty of shakers in my gym bag over the years, but this one's lid has held up through every single shake so far. The built-in agitator leaves zero powder clumps stuck at the bottom, which honestly makes cleaning up way less annoying.