Full disclosure: I’m an avid jacket collector. Be it a leather bomber, a puffer or a fleece, if there’s a new jacket trend, you can bet I’ll be investing in it. But there’s one type of jacket I always go back to, and that’s the humble blazer. Dress it up, style it down, a well-fitted classic black blazer is a timeless staple that belongs in every wardrobe. Although I have many blazers with different cuts and colours, my go-to is the COS single-breasted wool version.