Packable Coat at Uniqlo
Think of it as a pocket-sized parka, which is, in effect, what it is. Made from a 'fine' nylon, it folds down easily thanks to that material, but is easy to carry around, should you get caught in a swift shower.
When you do need it, the coat has a full zip front, two button pockets and a drawstring hood. Four colour options and all sizes, all selling for £49.90.
Find out more at the Uniqlo website