Nudie Jeans' wittily named 'Billy' jean jacket is made from the brand's trademark organic cotton - the environment and sustainability are as important to the label as style (and puns). It's cut for a slim fit and has all the classic fixtures and fittings - buttoned cuffs, pockets and waist tabs. The denim expert recommends wearing it under a leather biker to actually speed up the breaking-in process. Shown here with Acne Studios T-shirt, Acne Studios trousers, Converse sneakers.