GT Omega Geïsoleerde roestvrijstalen shaker - 650 ml

The mixing insert actually breaks up my protein powder completely, no more clumpy blobs at the bottom. Lid screws on tight enough that I can toss it in my gym bag without a single leak, which is a huge win for me.

I’m using mine mostly at my desk during sim racing sessions, and the mixing insert actually breaks up my protein powder without leaving those annoying clumps at the bottom. It keeps my drink cold for a good while, and the 650ml size is perfect to set next to the rig without taking up too much room.

The screw-on lid feels really secure, even when I toss it in my gym bag upside down. The mixing insert does a solid job of breaking up powder, and it's nice that it keeps my pre-workout cold for hours.