From the day I received it the shaker has leaked from around the top, I have 3 others that I purchased from BB.com and the rest were all fine. I was however disappointed with this one. Overall the product is a genious design. Guess I just got a defective one.

Best shaker bottle I've ever had. Blends nice, no drinking big clumps of protein, super easy to clean.

Excellent product, helps me to keep all my protein, pre and post workout in 1 place and easy to clean and comfortable to use.

This is a great shaker bottle. It seals well, screws on and off easy enough, and has a little clip for your bad, and tapers enough to fit in larger cup holders or in side backpack pockets. I also liked that it came in colors, the ones I had before me and my buddy confused them because they where the same color and bottle, now we know whos is whos which seems silly to like but its nice. Only thing I wish it had was a spot for pills that wasnt a lower ***** on piece, like a little pop top compartment up top, but no bottle is perfect. It mixes all types of powders well I mainly use weigh isolate and Bcaa in it. It washes out well and seems not to hold any real stank which is nice, being mine sit in a car for a day at a time while Im at work.

The product description is a bit misleading. It says the main container holds 20oz liquid. While this is factually accurate, the stated measurement capacity on the side is 12oz. I would NEVER put the max in there. It probably wouldn't mix properly as there's no room for it to mix.

Best shakers hands down! I have about 6 of them and they never disappoint.

Do not buy this - I bought these because they were bogo 1/2 off and what a waste of money. These "function" and I still use them, but only because I am working 6/12's and need enough shakers to plan for the week ahead of time. They leak, they don't mix your product well, they're really cheap and poorly made, and the insert for "blending" is a pain in the a**. So figure they're like $6 each or whatever after the bogo, spend the $12 and get the blender bottle pro staks, I've never been so disappointed with a blender bottle before.

Frida made it.

As an athlete that's always on the move, my Smartshakers are a life saver for transporting powders, drinks, and even my supplements when im on the go. They are durable, don't leak, and look great. No better shaker out there.

Nice design, perfect colors!

Doesn't mix very well, but it's very convenient. Pain to open the bottom compartments, and a pain to clean. But, versatility has it's price. It does deal very well and the tiny caribiner would be useful for some. Probably much better shakers out there, but it is convenient!