Thanks OP. For the bashers: ordered, arrived yesterday. Used twice so far no leakage at all, as with anything make sure the lid sits properly.

Ordered the blue color, one of the best looking shakers I've had. Also leaves no clumps or smell. People these days.

for those that want to try a different metal shaker there is the same priced item here
http://www.dolphinfitness.co.uk/en/dolphin-fitness-stainless-steel-shaker-739-ml/127302

I find metal ones aren't any better really and leave a slight tinny taste to some fluids.
The paint on these also comes off really easy leaving you with what looks like a bashed up drink cannister

Voted cold due to comments about the lid not sealing properly. That's pretty much priority number one for a shaker.

i've had this shaker well over a year and use it daily for work, gym and home. The only leaks i've had are when the lid isn't screwed on properly (as someone else has already mentioned) :P

We sold these in our two branches and they are probably the worst ever shakers! They leak as the seal inside the lid will either not sit properly or some have gaps.

with my smelly plastic one i tried

white vinegar
bicard. of soda
bleach
disinfectant

still smelled after all that - only difference is the smell now also incorporated all the smells of the stuff I tried to clean it with

bottom line is that plastic absorbs smells - metal doesnt & some metals like copper have antibacterial properties e.g. I also considered one of these http://www.ebay.co.uk/itm/Manhattan-Copper-3-Piece-Cocktail-Bar-Shaker-With-Strainer-800ml-/112030575041?&_trksid=p2056016.l4276

my USN shaker isnt leaking but you do have to be careful when screwing on the lid to make sure it isnt misthreaded

Put a steradent tab in your plastic one overnight and it'll be nice and fresh in the morning.

We used to clean our army water bottles this way.

Poor reviews on Amazon.. Lids leak apparently

Leaving white vinegar in mine over night every so often seems to get rid of the stank. Current one is about 3 years old now with no smell.

Thanks, bought as my plastic one in work is a bit gross