A cotton hoodie is no defence against horizontal rain at lunchtime. Here is how the three-layer system works, and how to build one that handles a British day from start to finish.
It rains an average of 156 days a year in the UK. Here is what actually matters when choosing a waterproof jacket, and what is just marketing nonsense.
Fog at 7am, sunshine at 10, downpour at lunch, breezy by teatime. All in one day. Here's how layering turns that chaos into something you barely think about.