Womens Black Chunky Double Strap Diamonte Footbed Sandals Peacocks Marni Black Fussbett Crystal Embellished Sandals 41 at 1stDibs marni Black leather Fussbett Marni Marni Black Fussbett Sandals Marni. The pair you'll be reaching for all summer long, the Fussbett Double Strap Sandal in Black from MARNI are designed to fit seamlessly into your daily. They've been made from naplack effect patent leather, interlinked with suede accents, with a clean double strap silhouette and adjustable back velcro closure. Understated yet distinctive, these sandals bring quiet modernity to every step.