Great raincoat from Seasalt,  I can't find a size tag on it but I think it was an 18 but please check the measurements given.  Seasalt usually do generous sizes.  

armpit to armpit - 26 inches/66cm

length - 35 inches/ 89cm

Navy with style-ized flowers as shown on photos.  Two side pockets, inside phone pocket,  Buttons down the front and on the cuffs.

Thanks for looking, please ask if you have any questions.