Livia Firth: My fashion picks for Earth Day

“Henrietta Ludgate is one of my favourite designers and we work together a lot for the Green Carpet Challenge . I can't think of anything more chic than this dress." Henrietta Ludgate dress, £330, from yoox.com Photograph: PR “The wooden clutches are incredibly beautiful, elegant and quirky. The red-and-white striped one is so much fun!” Kayu clutch, £280, from yoox.com Photograph: PR "I live in these T-shirts… day and night.” Stewart + Brown short-sleeve T-shirt, £70, from yoox.com Photograph: PR “These wedges are vegan and they will make you very tall and very 'green' indeed.” Mink vegan shoes, £300, from yoox.com Photograph: PR “The perfect summer office day look.” Outsider short dress, £150, from yoox.com Photograph: PR “Pachacuti are the only Fairtrade hats in the world and they’re incredibly beautiful.” Pachacuti straw hat, £60, from yoox.com Photograph: PR "I love this because it’s a bit hippy chic and the quality of the cotton is to die for.” Kami organic short dress, £170, from yoox.com Photograph: PR “These bags have the most beautiful story ever from Madagascar and they are a true summer must-have.” Mar Y Sol bag, £50, from yoox.com Photograph: PR “It's not summer yet - and you always need a jacket at hand.” Raffauf full-length jacket, £320, from yoox.com Photograph: PR