Looking for a trendy mac or trench coat

[pred02]

Hi,

I am in London - looking for a light spring/fall Mac coat to wear to work in the City. The coat should be 3/4 to be worn without a suit (I already have a proper overcoat) and should not be black. It should be dual purpose - sharp enough to wear for work, but also good to take out casually. Slim fit please.

I was thinking something like this - trench or mac coat that is formal and also casual. This one is nice but a wee bit too expensive (£250/sale)

Here is another one by SuitSupply that I like.

thanks