BlenderBottle SportMixer Shaker Bottle Perfect for Protein Shakes and Pre Workout, 20-Ounce, Plum

Its not quite a one handed opening. That improvement would make me give it a 5-star.

I really like this bottle, except for the fact that I drink most of my shakes in the car, and this doesnt fit in my cup holder. I tried it in a few other cars, thinking maybe mine are smaller than normal, but the bottom of the bottle is just too big.

I really like this, the size is perfect and the cap is very useful

I ordered this bottle as I liked the design much better than the typical blender bottle. The twist-to-lock lid is a huge bonus, and works amazing. The cup is leak proof as long as you remember to twist the lid on all the way :) even when Im mixing up preworkout and protein powders, nothing leaks out. It is a bit of a pain in to get clean in the dishwasher, as the powders dont come off very easily, but its easy enough to handwash if you have small hands.

Pros: I really like the size of this shaker bottle and ordered another one. I have not had a problem with cleaning it, but I clean it as soon as Im done with it. Fits in my cars cup holder perfectly. I love the rubber gripper across the middle of the bottle. Cons: The cap is attached to the bottle and then screws on. Several times I have closed the lid and forgot to screw it on and started shaking the bottle! Also, the bottle does sweat alot so constantly leaving water marks on my desk or in my car. Overall I really like it and would buy again.

I needed blender bottle for my superfood drink. It is a perfect size, not too big. The ball mixes the powder & milk thoroughly. I am enjoying the drink & the blending bottle.

They work great and seal nicely to prevent leaks!

Best Lil shaker cup!

I bought this shaker cup for my premier protein shakes. Holds 2 scoops of powder and 8 oz of milk perfectly. Mixes quickly and the twist top is a nice bonus. No leaks here! I love it.

No leaks and I will be purchasing another one.