Reminiscing 70s style, designers at Whistles clearly had something to do with the Estelle. Known and loved for their sculpting denim, this zip-front jumpsuit has retro wide legs, puffy sleeves and comes with a knotted belt at the waist to cinch the frame. Visible stitching accents add hints of athleisure and utility into the mix, leaving the styling options wide open. So what will it be? Leather boots, trainers or mules?