Review on BlenderBottle Bottle Organizer Storage 22 Ounce Kitchen & Dining for Travel & To-Go Drinkware by Kristina Fleming

There are plenty of shakers out there, some cheaper, but this stackable one is perfect for me. I keep my supplements in capsules and a 34 gram protein scoop in the larger bottom cup and a second 34 gram protein scoop in the top cup. This brings my daily stack of supplements in one place that's easy to store and prepare. The bottle is sealed and trust me, I shake it vigorously to mix the protein. Overall great product, great price, great staying power. I hand wash because I don't want it to warp in the dishwasher, but it's dishwasher safe.