Amina Muaddi Ladies Heels. SKU - SOFIA SLING 60. Color - Nappa White. Amina Muaddi Sofia Sling leather Pumps. This pump features an elasticated slingback strap, a pointed toe, a mid stiletto heel, combining both elegance and comfort in a sleek design. Upper Material - Calfskin. Lining Material - Calfskin. SoleMaterial - Leather. Made in Italy. Please visit the brand website for sizing information.