Hydra Cup ProFlow Shaker Bottles | Protein Shaker Cups with Whisk Ball, Leak-Proof Lid, Hidden Carry Handle | BPA-Free Gym Mixer for Protein Powder, Mixing Supplements (4 Pack with Regular Whisk)

These have worked great for months! No leaks and pretty vigorously shaken. Highly recommend!

I was away and left my blender cup where I was. It was cheaper to buy 4 of these than have my one cup shipped. My one cup cost about $22. This one I got 4 for $29. I was a little worried they might leak because of the reviews. But they are solid and no leaking I love that grid because one of my protein shakes always sticks to the top of the cup and doesn’t mix well. This prevents it from happening. Delivery was super quick. I placed the order in the morning and they delivered that same day. I’m super impressed with these cups. I love that I have more than one. I don’t have to worry if I lose one.

These shakers are great. Mix well and the perfect size.

Bought for my kid's school lunch. Perfect size for kid sized smoothies and they don't leak. Kid's have difficulty flipping the spout open though.

They worked really well when used for a protein powder shake. No hards lumps left. Like that it is a set of multiple cups. Very well made.