The Ryanne Fossil Guipure Dress in Black. ?Fossilized shell motifs are seen throughout the Spring/Summer collection, evolving the story of material memories with modern applications. Here, engineered fossil motif guipure lace enhances one of our sustainability initiatives, layered in the dramatic curves and draped contours of regenerated leather. Signature waist cutout, front slit skirt. Midi-length silhouette.