BlenderBottle Sportmixer | Protein Shaker cup | Diet Shaker | Water Bottle | with BlenderBall | 590ml - black/black

This is one of the best shaker bottles I have purchased, and I have been through a lot. I can say it's definitely leak-proof, the screw top has a far better design that most bottles out there. A bit more expensive that most but it's worth the extra few quid.

Really great bottle. Love the whisk shaker. Hasn’t leaked once so far.

Brilliant bottle, love this brand!

I like this bottle, especially the screw cap which helps make sure it’s properly sealed and will not pop open! The reason I only gave it 4 stars is that it’s a bit too long and narrow - the protein scoop doesn’t really fit inside it so you need to drop the powder from above which is a little messier

I have purchased lots of different shakers and this is my favourite one by far! It's fully leak proof and easy to open and close. It is worth every penny!