Looking for suggestions on casual jacket for spring/fall

[sloaney]

Hi, I'm looking for suggestions on an informal/casual but still elegant jacket that is sufficiently versatile in color, design and weight for spring and fall. I'd like to be able to wear this to the office with an open-collar dress shirt and wool slacks to the office.

I saw some good ones on Loro Piana but if there are other options at a lower cost that would be good.

Loro Piana Barrage

Loro Piana Roadster Villa D'Este

Will I pay a premium to buy these in London (and how much?)

Thanks, appreciate your comments.