In a city yet to name a back alley after Coco Chanel, Parisians stepped out Sunday to do their organic shopping at a street market named after fashion designer Sonia Rykiel. Hours earlier the city's mayor Anne Hidalgo - something of a fashionista herself - had declared Allee Sonya Rykiel open, with her label staging its Paris fashion week show between the twinkling lights of the market stalls.