DESIGNED BY MR PORTER.Mr P.'s jersey sweatshirt is made from certified organic cotton that's grown without the use of harmful pesticides and fertilisers. It's modelled after retro athletic wear, with a classic 'V' neckline and ribbed trims.Lower Impact Materials. This product is made using at least 50% lower-impact materials or ingredients. Find out more about our Consciously Crafted criteria here.