Last season we saw the re-working of leather from predictable outerwear in to an everyday basic, the t-shirt. For autumn winter this idea has run and run. Thanks to Chloes 70s heroine and Isabel Marants 50s biker girls, leather replaces cotton and wools on harem trousers, shirts, dresses and vests. Unlike double denim, one mustnt double leather but instead wear the item as the designer gods intended; plain and simply. Here are ELLEuk.coms top 12 pieces