Best… for light showers

£45, sizes 6-20, Primark

Primark has really pulled it out the bag with this three-in-one number. There’s a removable liner so you can adjust it as frequently as the weather changes. There are plenty of handy pockets and drawstring detailing to help you find the perfect fit. This may not be as durable as some of the pricier coats, but it’s a decent affordable option.