Zyliss Shake-n-Go, Frost

I bought it few months ago and its absolutely insane!just love it.i also doped it few times and nothing happened!10 out of 10!

Graduated in both milliliters and ounces. Both the screw-on lid and the hinged spout cover seal tightly. Built-in (and removable) sifter. Very nice for the money.

I regret buying this shaker bottle because it is so poorly designed that when you take a drink, the flip top lid has an indentation that retains a small amount of the liquid, which then pours onto your face or clothing when you turn the bottle over to drink. The flip top also flips onto your face when you drink from it.

I was a little unsure after reading some of the reviews on this shaker, but it looked better that most. I have had 0 leaks with it after using it for 3 weeks or so, every day. The "pop-cap" snaps tight and the lid seals well. Be mindful, there is an O-ring on the lid that, if removed, could result in leaking. This may be why some experienced issues. However, it has working great for me.

Bought 2 of these. Big disappointment.

1. Nothing to actually grip when you hold it; may work for someone with large hands, but certainly not someone with medium to small hands.

2. You have to lift the big flip top thing to drink out of it; but then it hits you in the nose while your drinking.

3. There is a little plastic wheel that drops down and works to mix up the powder; but this wheel is not easy to position, it falls through easily.

4. Lid difficult to screw on; I find myself having to retry 3-4 times to get it to screw on tight every time. Annoying.

Surely someone makes a better product than this!