This is smart little vintage jacket by EMPORIO ARMANI. The colour is an army green. Id say it had a slight military feel to it from the 1940s perhaps. It has a belt and 2 lower pockets. The tweed is a two tone, please see photos. The material is mostly wool , see photo for exacts. The only slight damage is the material label which is cut but still intact.
The over all condition is very good. Its beautifully lined. The size says its 42 but this is vintage sizing and from Italy so ive included approx measurements. 
The chest with jacket buttoned up pit to pit is 19" making this fit a size 38" chest , Id say it would best fit a size 12-14. Depending what clothing youre wearing underneath, do allow for this.
The length taken from top of shoulder down is 26.5"
The sleeves taken from edge of shoulder are 24.5"
Across the back shoulder to shoulder is 16".
It has built in shoulder pads giving nice shaping.
I send 2nd class signed for and can combine postage costs up 2kg in weight.
Thank you for looking.