To find out more about who's behind Surface to Air, visit one of their two Paris boutiques, on rue Charlot in a huge two-storey open space, or on rue de l'Arbre-Sec, in a large refurbished warehouse with a warm, underground decor. It could be an artists' squat. It could be an art gallery. A bookshop. A ready-to-wear boutique. In the end, it's all at once and so much more. This is where the word "concept-store" comes into its own.