Use your La Collection Privée Christian Dior travel case with fragrance refills. Gris Dior, Ambre Nuit, Bois d’Argent, Rouge Trafalgar and the other iconic La Collection Privée silhouettes are now available in 2 x 0.4 oz refillable sizes. The fragrance refills are designed to be exclusively used with the La Collection Privée Christian Dior travel case.