Stella McCartney debuted her Spring Summer 2013 fashion collection in Paris and it brought out a world of celebs and got a ton of praise from fashion critics. Her famous father Sir Paul McCartney was joined by his wife Nancy Shevell as well as Salma Hayek and Francois-Henri Pinault. The majority of her collection was airy, loose, easy, slouchy and overall comfortable. There was nothing hard to wear. There were voluminous jumpers, sheer fabrics and loose trousers.