And the Harrington jacket is just that; functional and a truly universal piece of men's outerwear. Ideal for transitional spring weather – somewhere in between warm, sunny days and April showers. It can be layered with a sweater or worn alone with a t-shirt, polo or casual shirt.

Do Harrington jackets keep you warm?

You can stick your hands in your pockets to keep them warm, or to achieve that insouciant look. In short, the Harrington has the function of sportswear, with the simple, clean lines and style of sharp casual dress, so that it can easily go from the golf course, to the business casual workplace, to a date on the town.

Are Harrington jackets good?

It's been rejigged, reworked and sexified, but at its core, the Harrington is still one of the best pieces of lightweight outerwear you can get. Here are ten of the best to buy now.