A great bottle let down massively by a terrible seal which will inevitably leak. There will always be a gap in the seal.

This is the best shaker I’ve ever used. No nasty smells like you’d sometimes get with plastic ones. No leaks from mine (so far). Excellent product. 👍🏻

Shaker was great, no leaking or spilling but I dropped it once and now it spills everywhere, with every sip. Not ideal for that after one small drop

I used this for merely two months before the cap broke. This is a terrible product. Please save your money and buy other shakers from other brands.

So I’m new to the whole protein shake thing, this is my first shaker. It’s lightweight and feels sturdy so great to throw into a bag, had no issues with leaking. It creates smooth shakes without lumps. If you rinse the shaker under cold water it stays cold for a while because it’s metal keeping your drink cold. Definitely feels very high quality 

the shaker is perfect, good design, good shaking ability, good size, but the lid itself started ripping off after 2 weeks of use, i wasnt rough opening the lid or anything- but it just started ripping in the plastic area. very frustrating.

Everything about this shaker is perfect except the fact that it doesn't mix the drinks well... the "mesh" in the lid is only a few bits of plastic so an actual mesh would blend the powders and such much better.. always comes out lumpy no matter how much I shake. Also you can't remove the mesh so it's a bit harder to clean. Other than that major flaw though it's very good. No bad taste, easy to clean (not the inside of the lid) never gets smelly even if you leave it a day or 2 before washing it out. Unfortunate design.

Absolutely amazing, stays cold all day. Love it

I have two of these - one was a free gift promo and the other I bought on sale. Being stainless steel they act as a conductor and will cool down very quickly which is nice. They aren't advertised as dishwasher safe but I put mine in - it will break the adhesive that holds the metal ring to the lid though. I will be buying another one next time they are on sale. They don't leak and the spout cap is sturdy enough that it will not break off easily.

great product very durable and does not start to smell like normal plastic shakers