Mystique Flat Sandal in Black. - size 8 (also in ) Mystique Flat Sandal in Black. - size 8 (also in ) Leather upper and sole. Ankle strap with buckle closure. Crystal accents. MYSR-WZ27. 7329. Hand crafted and made to order, each pair of Mystique sandals are unique and one-of-a-kind. Each item is inspired by exciting world destinations and embellished with gems imported from Europe, with each jewel sewn on by hand. From minimalist and modern to daring and flashy, there is an elegant sandal for every kind of woman, for every occasion, and every scene.